HMT330 - Humidity and Temperature Sensors VAISALA - Free user manual and instructions

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USER MANUAL HMT330 VAISALA

PUBLISHED BY Vaisala Oyj Phone (int): +358 9 8949 1 P.0. Box 26 Fax: +358 9 8949 2227 F1-00421 Helsinki Finland Visit our Internet pages at http://www.vaisala.com/ © Vaisala 2009 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder. The contents are subject to change without prior notice. Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale.

GENERAL INFORMATION. About This Manual . Contents of This Manua Version Information … General Safety Considerations Feedback Product Related Safety Precaution ESD Protection. Recycling Regulatory Compliances . DNV Type Approval. Transmitters with LAN or WLAN Interface Transmitters with WLAN Interface Patent Notice Trademarks License Agreement

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PRODUCT OVERVIEW. 9 Introduction to HMT330 9 Basic Features and Options 0 Structure of the Transmitter 1 Probe Options 3 Warmed Probe HMT337 5

INSTALLATION men Mounting the Housing Standard Mounting without Mounting P late Wall Mounting with Wall Mounting Ki Mounting with DIN Rail Installation K Pole Installation with Installation Kit for Pole or Pipeline … Mounting Rain Shield with Installation Kit Panel Mounting Fram Wiring Cable Bushings Grounding the Cables Grounding the Transmitter Housin Signal and Power Supply Wiring Connections to a 24 VAC Power Supply Probe Mounting General Instructions for P robes wi HMT333 for Ducts and Tight Spaces VAISALA

User's Guide HMT334 for High Pressure and Vacuum Applications. HMT335 for High Temperatures…. HMT337 for High Humidity Application: Temperature P robe (Optional) HMT338 for Pressurized Pipelines Tightening the Clasp Nut. Optional Modules …... Power Supply Module . Installation . Warnings Galvanic Isolation for Third Analog Output … Installation and Wiring Selecting the Activation RS-422/485 Interface . Installation and Wiring LAN Interface. WLAN Interface. Attaching the Data Logger Module. 8-Pin Connector.

Terminal Program Settings . Opening a Serial/USB co: Opening a Telnet session (LAN/WLAN) List of Serial Commands Getting Measurement Message from Serial Line. Starting Continuous Outputting Outputting Reading Once. SEND. SEND D Formatting Serial Line Message FTIME and FDAT EST. General Settings Changing Quantities and Units Using Display/Keypad Using Serial Line. FORM 93 UNIT. 95 Pressure Compensation Setting 95 Using Display/Keypad Using Serial Line PRES and XPRES Date and Time... Using Display/Keypad Using Serial Line User Port Serial Settings. Using Display/Keypad Using Serial Line. SERI... SMOD INTV ECHO. Data Filterin FILT.... Device Information View Recorded Data DIR. Analog Output Settings Changing Output Mode and Range Analog Output Quantities VAISALA _ 5

CALIBRATION AND ADJ USTMENT. Opening and Closing the Adjustment Mode Relative Humidity Adjustmen Using Push-Buttons Using Display/Keypa Using Serial Line. CRH Relative Humidity Adjustment after Sensor Change Using Display/Keypad Using Serial Line FCRH.. Temperature Adjustment. Using Display/Keypad Using Serial Line Analog Output Adjustment. Using Display/Keypad Using Serial Line. ACAL Feeding Adjustment Information. Using Display/Keypad Using Serial Line. CTEXT. CDATE.

TECHNICAL DATA Specifications Performance. Relative Humidity Temperature (+ Operating Pressure Rang Optional Temperature Probe Calculated Variables Accuracies of Calculated Variables .. Accuracy of Dewpoint Temperature

Accuracy of Mixing Ratio g/kg (Ambient Pressure

List of Figures Figure 1 Transmitter Body... Figure 2 Inside the Transmitter. Figure 3 HMT331 Fixed Probe. Figure 4 HMT331 Short Cable Probe. Figure 5 Probe Options …. Figure 6 Standard Mounting. Figure 7 Mounting with Wall Mounting Kit. Figure 8 Dimensions of the Plastic Mounting Figure 9 Dimensions of the Probe Holder Plate (mm/inch) Figure 10 Mounting with the DIN Rail Installation Kit Figure 11 Vertical Pole. Figure 12 Horizontal Pole. Figure 13 Mounting with Meta g 31 Figure 14 Dimensions of the Metal Mounting Plate (mm/inch) 32 Figure 15 Mounting the Rain Shield with the Installation Kit 32 Figure 16 Panel Mounting Frame... Figure 17 Panel Mounting Dimensions (mm/inch). Figure 18 Cable Bushings Figure 19 Grounding the Screen of Electrical Cable. Figure 20 Screw Terminal Block on Motherboart Figure 21 Connections to 24 VAC Power Suppl Figure 22 Measurement Error at 100 %RH. Figure 23 Horizontal Mounting of Probe Figure 24 Vertical Mounting of Probe Figure 25 HMT344 Probe... Figure 26 Tightening the Nu Figure 27 Cleaning of Tightening Cone Figure 28 HMT338 Probe... Figure 29 Sealing of Fitting Body into Process Figure 30 Tightening the Clasp Nut Figure 31 Power Supply Module … Figure 32 Galvanic Output Isolation Module Figure 33 Third Analog Output... Figure 34 Third analog output selection Figure 35 Relay Module … Figure 36 RS-485 Module Figure 37 4-Wire RS-485 Bus. Figure 38 LAN Interface Module. Figure 39 WLAN Interface Module Figure 40 Data Logger Module. Figure 41 Wiring of Optional 8-Pin Connector. Figure 42 Basic Display Figure 43 Graphical Display Figure 44 Graphical Display with Data Logger Figure 45 Main Menus... Figure 46 Display Alarm Active Figure 47 Display Alarms. Figure 48 Modifying an Ala Figure 49 Service Port Connector and User Port Terminal on Mother Figure 50 Connection Example Between PC Serial Port and User Port Figure 51 Network Interface Menu Figure 52 IP Configuration Menu Figure 53 Wireless LAN Settings VAISALA _

User's Guide __ Figure 54 Entering Network SSID... Figure 55 Selecting the Wireless Network Type. Figure 56 Web Configuration Interface for WLAN Figure 57 Opening a Serial Connection. Figure 58 Opening a Telnet Connection Figure 59 Device Information on Display Figure 60 Current/Voltage Switches of Output Modules Figure 61 Measurement-Based Relay Output Modes … Figure 62 FAULT/ONLINE STATUS Relay Output Mode Figure 63 Relay Indicators on Display Figure 64 Decrease of Sensor Gain. 124 Figure 65 Purge Buttons on Motherboard. 126 Figure 66 Chemical Purge Settings. 126 Figure 67 Performing Chemical Purg Figure 68 Changing the Sensor. Figure 69 Error Indicator and Error Message Figure 70 Adjustment and Purge Button: Figure 71 Adjustment Menu... Figure 72 Selecting Point 1 Reference Type Figure 73 Accuracy over Temperature Range. Figure 74 Accuracy in Dewpoint Measuremen Figure 75 Transmitter Body Dimensions Figure 76 WLAN Antenna Dimensions. Figure 77 HMT331 Fixed Probe Dimensions Figure 78 HMT331 Short Cable Probe Dimensions Figure 79 HMT333 Probe Dimensions Figure 80 HMT334 Probe Dimensions Figure 81 HMT335 Probe Dimensions Figure 82 HMT337 Probe Dimensions Figure 83 HMT338 Probe Dimensions Figure 84 Optional Temperature Probe Dimensions. Figure 85 Duct Mounting Installation Kit Figure 86 Duct Mounting Installation Kit Figure 87 Swagelok Installation Kit for RH-probe Figure 88 Swagelok Installation Kit for T-Probe. Figure 89 Cable Installation with Cable Gland Figure 90 Probe Installation with Cable Gland Figure 91 Vapor Tight Installation Figure 92 Wall Mounting Installation Figure 93 Climate Chamber Installation (not Available from Vaisala). Figure 94 Example of Installation through Roof Figure 95 Installing the HMT338 Probe Through a Ball Valve Assembly Figure 96 Meteorological Installation Kit for Outdoor Installation … 10 M210566EN-H

List of Tables VAISALA _ Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Table 32 Manual Revisions Application, Location Classes Quantities Measured by HMT33 Optional Quantities Measured by HMT330 HMT338 Probe Dimensions Connecting the Twisted Pair Wires to the Screw Terminals. 4-Wire (Switch 3: On). 2-Wire (Switch 3: Off). Observartion Periods and Resolution Wiring of 8-Pin Connector... Periods for Trend and Max/Min Calculations Graph Information Messages in Cursor Mode. Default Serial Communication Settings for the User Po Communication Settings for the Service Port. IP Settings for the LAN and WLAN Interfaces. Wireless LAN Settings. Measurement Commands. Formatting Commands.. Data Recording Commands. Chemical Purge Commands Calibration and Adjustment Commands. Setting and Testing the Analog Outputs Setting and Testing the Relays Other Commands … FORM Command Modifiers Multiplication Factors... Selection of Output Modes Filtering Levels Error Messages Indicator Led Functions. Calculated Variables (Typical Ranges Transmitter Weight (in kg/lb)

GENERAL INFORMATION This chapter provides general notes for the manual and the product. About This Manual This manual provides information for installing, operating, and maintaining Vaisala HUMICAP° Humidity and Temperature Transmitter Series HMT330. Contents of This Manual This manual consists of the following chapters:

Chapter 1, General Information, provides general notes for the manual

Chapter 2, Product Overview, introduces the features, advantages, and

the product nomenclature of HMT330.

Chapter 3, Installation, provides you with information that is intended

to help you install the product.

Chapter 4, Operation, contains information that is needed to operate

Chapter 5, Maintenance, contains information that is needed in basic

maintenance of the product.

Chapter 6, Calibration and A djustment, provides information and

instructions conceming calibration and adjustment of HMT330.

Chapter 7, Technical Data, provides the technical data of the product.

-_ Appendix À, Probe Installation Kits and Installation Examples, presents the installation kits available for HMT330 and provides some installation examples. -_ Appendix B, Calculation Formulas, presents the equations used in HMT330 to calculate values of dewpoint, mixing ratio, absolute humidity and enthalpy in normal pressure. VAISALA 13

User's Guide Version Information Table 1 Manual Revisions Manual Code Description M210566EN-A September 2004 - Firstrelease. M210566EN-B November 2004 M210566EN-C September 2005 M210566EN-D November 2006 M210566EN-E June 2007 - New options added: Data logger module, USB-RJ 45 cable, new sensors HUMICAP ® 180R and HUMICAP ® 180RC. Support for Chinese language. M210566EN-F May 2008 - New options added: LAN Interface, WLAN Interface. Display Alarm feature added. M210566EN-G June 2009 - Added PuTTY terminal application instructions, revised description of the M170 Link software. Removed instructions for HyperTerminal. Removed Humicap 180L2 sensor option. M210566EN-H November 2009 - This manual. Added HMT 331 short cable probe. Added DNV type approval in the Regulatory Compliances section. General Safety Considerations Throughout the manual, important safety considerations are highlighted as follows: WARNING Warning alerts you to a serious hazard. If you do not read and follow instructions very carefully at this point, there is a risk of injury or even death. CAUTION Caution warns you of a potential hazard. If you do not read and follow instructions carefully at this point, the product could be damaged or important data could be lost. NOTE Note highlights important information on using the product.

General Information Feedback Vaisala Customer Documentation Team welcomes your comments and suggestions on the quality and usefulness of this publication. If you find errors or have other suggestions for improvement, please indicate the chapter, section, and page number. Ÿ ou can send comments to us by e-mail: manuals@ vaisala.com Product Related Safety Precautions The Vaisala HUMICAP° Humidity and Temperature Transmitter Series HMT330 delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions: WARNING Ground the product, and verify outdoor installation grounding periodically to minimize shock hazard. CAUTION Do not modify the unit. Improper modification can damage the product, lead to malfunction, or make the product noncompliant with applicable legislation. VAISALA ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. However, it is possible to damage the product by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. To make sure you are not delivering high static voltages yourself: Handle ESD sensitive components on a properly grounded and protected ESD workbench. When this is not possible, ground yourself to the equipment chassis before touching the boards. Ground yourself with a wrist strap and a resistive connection cord. When neither of the above is possible, touch a conductive part of the equipment chassis with your other hand before touching the boards. -_ Always hold the boards by the edges and avoid touching the component contacts.

User's Guide 2222222 Recycling € Recycle all applicable material. Dispose of batteries and the unit according to statutory regulations. Do not dispose of with regular household refuse.

Regulatory Compliances DNV Type Approval The Vaisala HUMICA P° Humidity and Temperature Transmitter Series HMT330 is found to comply with Det Norske Veritas’ Rules for Classification of Ships, High Speed & Light Craft and Det Norske Veritas’ Offshore standards. Applicable tests carried out according to Standard for Certification No. 2.4, April 2006. Table 2 Application, Location Classes Type HMT330 Temperature B Humidity B Vibration A EMC B Enclosure B/IP65 DINIV

TYPE APPROVED PRODUCT

Transmitters with LAN or WLAN Interface This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Transmitters with WLAN Interface This equipment has been designed to operate with a 2 dBi half-wave antenna. Antennas with a gain greater than 2 dB are strictly prohibited for use with this device. The required antenna impedance is 50 ohms. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication. This Class [B] digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada. VAISALA 17

User's Guide Patent Notice The Vaisala HUMICA P° Humidity and Temperature Transmitter Series HMT330 is protected by, for example, the following patents and their corresponding national rights: Finnish patents 98861 and 99164, French patents 6650303 and 9504397, German patents 69418174 and 19513274, Japanese patents 3585973 and 2801156, UK patents 0665303 and 2288465, U.S. patent 5607564. Trademarks HUMICAP° is a registered trademark of Vaisala Oyj. Windows® is a registered trademark of Microsoft Corporation in the United States and/or other countries. License Agreement Al rights to any software are held by V'aisala or third parties. The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License A greement. Warranty For certain products Vaisala normally gives a limited one-year warranty. Please observe that any such warranty may not be valid in case of damage due to normal wear and tear, exceptional operating conditions, negligent handling or installation, or unauthorized modifications. Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product. 18 M210566EN-H

PRODUCT OVERVIEW This chapter introduces the features, advantages, and the product nomenclature of the V aisala HUMICA P° Humidity and Temperature Transmitter Series HMT330. Introduction to HMT330 The HMT330 transmitter provides reliable humidity measurement in a wide range of applications. Analog outputs can be chosen between current and voltage signals. Altematively, digital outputs RS-232 (standard) or RS-422/485 (optional) can be selected. The quantities measured and calculated by HMT330 are presented in Table 3 below. The quantities available as an option are presented in Table 4 below. Table 3 Quantities Measured by HMT 330 Quantity Abbreviati | Metric Unit | Non Metric on Unit Relative humidity (RH) RH RH RH Temperature (T) T °C 9F Table 4 Optional Quantities Measured by HMT 330 Quantity Abbreviati | Metric Unit | Non Metric on Unit Dewpoint / Frostpoint TDF °C °F Temperature (Tr) Dewpoint Temperature (T4) TD °C °F Absolute humidity (a) A g/m grit Mixing ratio (x) X g/kg grlb Wetbulb temperature (T,) TW °C °F Humid air volume/ dry air H20 ppmv/ppm, | ppmy/ppme volume {by volume or by weight) (H20) Water vapor pressure (P,) PW hPa lb/in Water vapor saturation PWS hPa Ib/in pressure (Pws) Enthalpy (h) H K] /kg Btu/lb Difference ofT and Tar(AT) DT °C °F VAISALA 19

User's Guide Basic Features and Options Several probes for various applications User friendly display Calculated output quantities available Different probe mounting kits, sensor protection options and probe cable lengths -_ Transmitter mounting kits for multiple installation purposes Chemical purge for applications where interfering chemicals in the measuring environment pose a risk - __Warmed probe and sensor heating for high humidity conditions (HMT337) -_ Additional temperature sensor (HMT337) USB connectivity for service connections via the optional USB-RJ45 cable Optional modules: isolated power supply power supply module RS-422/485-module LAN and WLAN interfaces data logger module with real time clock additional analog output module relay module 20 M210566EN-H

Probe Options The HMT331 is intended for demanding wall-mounted applications. The standard version has a fixed probe. 091-058 Figure 3 HMT331 Fixed Probe The HMT331 short cable probe is a special version for use with the WLAN module. It has the HMT333 probe on a short cable (21 cm), and a mounting plate with a probe holder. 091-059 Figure 4 HMT331 Short Cable Probe VAISALA

091-066 Figure 5 Probe Options The following numbers refer to Figure 5:

HMT333 for ducts and tight spaces HMT334 for high pressure and vacuum applications (up to 100 bars) HMT335 for high temperatures (up to 180 ©, vapor tight) *) Flange available as an option HMT337 for high humidity applications (optional warmed and vapor tight probe) HMT338 for pressurized pipelines (up to 40 bar) Probe cable lengths are 2 m, 5 m and 10 m. M210566EN-H

VAISALA Product Overview Warmed Probe HMT337 Temperature difference between the probe and external environment can cause a risk of condensation on the sensor. A wet probe cannot observe the actual humidity in the ambient air. If the condensed water is contaminated, the life span of the probe may shorten and calibration may change. HMT337 probe shall be used in applications where condensation can occur due to high humidity and rapid humidity changes. The warmed probe is heated continuously so that its temperature is always higher than in environment. This prevents condensation on the probe. The power consumption of the warmed probe is slightly higher than other probes.

Chapter 3 Installation

INSTALLATION This chapter provides you with information that is intended to help you install the product. Mounting the Housing The housing can be mounted either without the mounting plate or with optional mounting plates. Standard Mounting without Mounting Plate Mount the housing by attaching the transmitter to a wall with 4 screws, for example M6 (not provided). 169 (6.65) ses)

User's Guide Wall Mounting with Wall Mounting Kit When mounting with wall mounting kit the mounting plate (V aisala order code 214829) can be installed directly on wall or onto a standard wall box (also US junction box). When wiring through back wall, remove the plastic plug from the wiring hole in the transmitter before mounting.

Figure 7 Mounting with Wall Mounting Kit The following numbers refer to Figure 7: 1 = Plastic mounting plate 2 = Mountthe plate to wall with 4 screws M6 (not provided) 3 = Thearched side up 4 = Attach the HMT330 to the mounting plate with 4 fixing screws M3 (provided) 5 = Holes for wall/junction box mounting 183 (7.20) 133 (5.24) e © : 4

Chapter 3 Installation

The HMT331 short cable probe is designed to be wall mounted with the probe holder plate (V aisala order code 226252). The probe holder plate is similar to the standard mounting plate, except for the probe holder at the bottom. 183 (7.20) 133 (5.24) Üe 060 Sa 0e DA sc Lao 08 _ 104 (4.09) 223 (8.78) #06 | 091-061 Figure 9 Dimensions of the Probe Holder Plate (mmy/inch) VAISALA 29

User's Guide Mounting with DIN Rail Installation Kit DIN rail installation kit includes a wall mounting kit, 2 clip-fasteners and 2 screws M4 x 10 DIN 7985 (Vaisala order code: 215094).

1. Attach two spring holders to the plastic mounting plate by using the

screws provided in the installation kit.

2. Attachthe HMT330 to the plastic mounting plate with the

4 screws provided for that purpose.

3. Press the transmitter onto the DIN rail so that the clip-fasteners

snap into the rail. 0503-02 Figure 10 Mounting with the DIN Rail Installation Kit Pole Installation with Installation Kit for Pole or Pipeline Installation kit for pole or pipeline (V aisala order code: 215108) includes the metal mounting plate and 4 mounting nuts for pole mounting. When mounting, the arrow in the metal mounting plate must point upwards; see Figure 13 on page 31 below. 0503-06 Figure 11 Vertical Pole The following numbers refer to Figure 11: Fixing brackets (2 pcs) M8 (provided) for 30 … 102 mm poles. Mounting nuts M8 (4 pcs) M210566EN-H

Chapter 3 Installation

0503-07 Figure 12 Horizontal Pole The following number refers to Figure 12: 1 = Mounting nuts M8 (4 pcs) Metal mounting plate is included in rain shield with installation kit and installation kit for pole or pipeline. 0503-041 Figure 13 Mounting with Metal Wall Mounting Plate The following numbers refer to Figure 13: 1 = Mountthe plate to wall with 4 screws M8 (not provided) 2 = Attach the HMT330 to the mounting plate with 4 fixing screws M6 (provided) 3 = Notethe position of the arrow when mounting. This side must be up when mounting. VAISALA 31

Figure 14 Dimensions of the Metal Mounting Plate (mm/inch) Mounting Rain Shield with Installation Kit 0503-08 Figure 15 Mounting the Rain Shield with the Installation Kit The following numbers refer to Figure 15: 1 Assemble the rain shield with the installation kit (V'aisala order code: 215109) to the metal mounting plate with 2 (M6) mounting screws (provided). 2 = Assemble the mounting plate with rain shield with installation kit to the wall or to the pole (see pole installation). 3 = Assemble the HMT330 to the mounting plate with 4 fixing screws (provided). 32 M210566EN-H

Chapter 3 Installation

Panel Mounting Frame To enable a neat and dirt free embedded installation of the transmitter, a panel mounting frame is available as an option (V aisala order code: 216038). The frame is a thin, flexible plastic frame for the transmitter, with adhesive tape on one side. The frame is used to hide any rough edges of the installation hole, and provide a more finished look. Note that the panel mounting frame is not intended to bear the weight of the transmitter, and does not include any mounting supports. Use the panel mounting frame as follows:

1. Use the frame as a template to mark the required size for the

installation hole in the panel.

2. Cutthe hole in the panel.

Mount the transmitter through the panel with suitable supports. 4 Remove the paper protecting the adhesive tape on the frame, and attach the frame around the transmitter. Refer to Figure 16 below. 0704-02 Figure 16 Panel Mounting Frame The following numbers refer to Figure 16: 1 Panel (not included) 2 Panel mounting frame VAISALA 33

User's Guide 200 (7.87) 119 (4.69) 155 (6.10) 154 (6.06) 0804-083 Figure 17 Panel Mounting Dimensions (mm/inch) Wiring Cable Bushings A single electrical cable with screen and three to ten wires is recommended for power and analog/serial connections. The cable diameter should be 8 … 11 mm. The number of cable bushings depends on the transmitter options. See the following recommendations for the cable bushings: 0503-010 Figure 18 Cable Bushings The following numbers refer to Figure 18: 1 = Cable forsignal/powering 98 … 11 mm 2 = Cable for optional module 8 … 11 mm 3 = Cable for optional power supply module 98 … 11 mm 34 M210566EN-H

Chapter 3 Installation

NOTE When there is high electric noise level (for example, near a powerful electric motor) in the operating environment it is recommended to use shielded cable or take care that the signal cables are separated from other cables. Grounding the Cables Ground the screen of the electrical cable properly to achieve the best possible EMC performance. Fig. 1 Fig. 3 0504-049 Figure 19 Grounding the Screen of Electrical Cable VAISALA 35

User's Guide Cut back outer sheath to desired length. Cut back screen braiding or screen foil to dimension X (see figure 3). Push the domed cap nut (item 1) and the seal insert with contact socket of the gland (item 2+3) onto the cable as shown in the diagram. Bend over the screen braiding or screen foil by about 902 (item 4). Push the seal insert with the contact socket of the gland (item 2+3) up to the screen braiding or screen foil. Mount lower part (item 5) on the housing. Push the seal with the contact socket of the gland and (item 2+3) flush into the lower part (item 5). Attach the domed cap nut (item 1) onto the lower part (item 5). Grounding the Transmitter Housing In case you need to ground the transmitter housing, the grounding connector is found inside the housing, see Figure 2 on page 22. Note that the probe is connected to the same potential as the housing. Make sure that different groundings are made to the same potential. Otherwise harmful ground currents may be generated. If itis needed to have galvanic isolation of the power supply line from the output signals, the HMT330 can be ordered with an optional output isolation module. This module prevents harmful grounding loops. M210566EN-H

Installation Signal and Power Supply Wiring When connecting the transmitter with 8-pin connector, see section 8-Pin Connector on page 64. When wiring the power supply module, see section Power Supply Module on page 49.

DDDDEVVOO Figure 20 0506-028 Screw Terminal Block on Motherboard The following numbers refer to Figure 20:

Power supply terminals 10 … 35 VDC, 24 VAC User port (RS-232 terminals) Analog signal terminals WARNING Make sure that you connect only de-energized wires. VAISALA Unfasten the four cover screws and open the transmitter cover.

2. Insert the power supply wires and signal wires through the cable

bushing in the bottom of the transmitter; see the grounding instructions in the previous sections.

3. Connect the analog output cables to terminals: Ch1 +, Ch1-, Ch2+,

Ch2-. Connect the RS-232 user port cables to terminals RxD, GND and TxD. For more information about the RS-232 connection refer to section Serial Line Communication on page 73.

4. When wiring the optional modules, see the corresponding section

for instructions: RS-422/485 Interface on page 57 Relays on page 55 Third Analog Output on page 53 LAN Interface on page 59 WLAN Interface on page 60

5. Connect the power supply wires to the connectors: POWER

10. 35V + 24V - (+) and (-) terminals. If you are using 24 VAC

power supply, see the note below before connecting the supply wires.

6. Tumon the power. The indicator led on the cover lit continuously

during normal operation. 7... Close the cover and fasten the cover screws. The transmitter is ready for use. Connections to a 24 VAC Power Supply Separate floating supply for each transmitter is recommended (see the upper part of Figure 21 on page 39). If you have to connect several transmitters or other instruments to one AC supply, the phase (-) must always be connected to the (+) connector of each transmitter (see the lower part of Figure 21). CAUTION

24 VAC POWER SUPPLY USE

To prevent fire and/or damage, if either 24 VAC wire is grounded or connected to a "-","0", or" GND" terminal of any other device, you must connect the same wire on the "-" terminal also on this instrument. M210566EN-H

Chapter 3 Installation

User's Guide Probe Mounting In humidity measurement and especially in calibration it is essential that temperature of the probe and measuring environment is the same. Even a small difference in temperature between the environment and the probe causes an error. As the curve below shows, if the temperature is +20 °C and the relative humidity 100 %RH, a difference of +1 °C between the environment and the probe causes an error of +6 %RH. The graph below illustrates the measurement error at 100 % RH when the difference between the ambient and sensor temperature is 1 °C. S = D % & 1 à 14 œ vw -40 -20 0 20 40 60 80 100 Temperature (°C) 0507-023 Figure 22 Measurement Error at 100 % RH 40 M210566EN-H

Chapter 3 Installation

General Instructions for Probes with a Cable Mount the probes with a cable horizontally; this way, any water condensing on the tube cannot flow onto the sensor.

0507-024 Figure23 Horizontal Mounting of Probe The following numbers refer to Figure 23: 1 = To be sealed. 2 = Tobeinsulated. 3 = Insulate the cable. 4 = Letthe cable hang loosely. This prevents condensed water running to the probe along the cable. VAISALA 41

User's Guide When there is no alternative but to install the probe in the process vertically, the point of entry must be carefully insulated. The cable must also be allowed to hang loosely as this prevents any condensed water from running onto the probe along the cable.

0507-02 Figure 24 Vertical Mounting of Probe The following numbers refer to Figure 24: 1 = To besealed. 2 = Insulatethe cable. 3 = Tobeinsulated. 4 = Letthe cable hang loosely. This prevents condensed water running to the sensor along the cable. NOTE Please do not attach a heated probe (HMT337) to metal structures to avoid condensation problems caused by heat conduction along the metal. If the process temperature is much higher than that of the environment, the whole probe and preferably plenty of cable must be inside the process. This prevents measuring inaccuracy caused by heat conduction along the cable. When mounted on the side of a duct or channel, the probe must be inserted from the side of the duct. If this is not possible and the probe must be inserted from the top, the point of entry must be carefully insulated. For Vaisala probe installation kits and some installation examples, see Appendix À on page 163. M210566EN-H

Chapter 3 Installation

HMT333 for Ducts and Tight Spaces The HMT333 is a small size (9 = 12mm) general-purpose probe suitable for ducts and channels with the installation kit available from V aisala. The HMT333 provides for two measuring range options. The first probe version is equipped with a flexible cable and can be used when measuring in environments up to 80 °C. The second version is suitable for measuring in environments up to 120 ©C. See Appendix À on page 163 for the following probe installation kits for HMT333 and installation examples. Duct mounting kit Cable gland. HMT334 for High Pressure and Vacuum Applications The HMT334 probe is for the dewpoint measurements in pressurized rooms and industrial processes. The probe is provided with a nut, a fitting screw and a sealing washer. Keep the fitting screw and the nut in place on the body of the probe during handling to prevent damage to the highly polished surface of the probe. Follow the instructions below to achieve a leak-tight assembly: Remove the fitting screw from the nut and the probe.

2. Attach the fitting screw to the chamber wall with a sealing washer.

Tighten the fitting screw into the threaded sleeve with a torque wrench. The tightening torque is 150 + 10 Nm (110 +7 ft-Ibs).

3. Insert the body of the probe into the fitting screw and attach the nut

manually to the fitting screw so that the connection feels tight.

4. Mark both the fitting screw and the nut hex.

User's Guide 0506-029 Figure 25 HMT344 Probe The following numbers refer to Figure 25: Tightening cone Nut Fitting screw, M22x1.5 or NPT 1/2" Sealing washer Probe; @12 mm. HEwNDe WU UH

5. Tighten the nut a further 30° (1/12) turn or if you have a torque

wrench tighten it with a torque of 80 +10 Nm (60 +7 ft-Ibs). 0503-034 Figure26 Tightening the Nut NOTE When re-tightening the nut after detachment the nut must be tightened without increased effort.

6. Clean and grease the tightening cone of the fitting screw after every

tenth detachment. Change the sealing washer every time the fitting screw is detached. Use high-vacuum grease (for example Dow Corning) or similar grease. 44 M210566EN-H

Installation 0503-03 Figure 27 Cleaning of Tightening Cone The following numbers refer to Figure 27: 1 Fitting screw Sealing washer Tightening cone Clean cotton stick

CAUTION In pressurized processes it is essential to tighten the supporting nuts and screws very carefully to prevent loosening of the probe by the action of pressure. NOTE When installed in a process with a pressure differing from normal atmospheric pressure, please enter the pressure value of the process (in hPa or mbar) into the transmitter memory via the serial line (see command PRES and XPRES on page 96) or by using display/keypad. VAISALA HMT335 for High Temperatures HMT335 is installed similarly than the HMT333 probe but without the supporting bar. Refer to Appendix A on page 163 for more information on the duct installation kit for HMT 335. To avoid incorrect humidity readings, the temperature differences between inside and outside of the duct must not be remarkable.

User's Guide HMT337 for High Humidity Applications The HMT337 is for environment where relative humidity is very high, near saturation. The warmed probe prevents the saturation of the sensor. An additional temperature probe is also available. See A ppendix À on page 163 for a presentation of the following probe installation kits for HMT337 with installation examples: Duct mounting kit Cable gland Pressure tight Swagelok connector -_ Vaisala's Meteorological Installation kit The installation kits are available for both humidity and temperature probe. Temperature Probe (Optional) An additional temperature probe is available to measure the ambient temperature when the HMT337 (with probe warming) is used. The additional temperature probe allows you to measure other humidity quantities apart from dewpoint and mixing ratio. The temperature probe must be connected to the transmitter at the factory. Do not cut and re- connect the cable yourself. Y ou must install the additional temperature probe in the same measurement environment as the HMT337 probe. Make sure that heat does not transfer from the warmed probe to the temperature probe. For an example installation, refer to section Example of Installation Through Roof on page 169. HMT338 for Pressurized Pipelines Due to the sliding fit the HMT338 is easy to install into and remove from the pressurized process. The probe is especially suitable for the measurements in pipelines. See section Ball Valve Installation Kit for HMT338 on page 170. M210566EN-H

VAISALA 10508-077 Figure 28 HMT338 Probe The following numbers refer to Figure 28: 1 Clasp nut, 24 mm hex nut 2 Fitting body, 27 mm hex head The following two fitting body options are available: Fitting Body ISO1/2 solid structure Fitting Body NPT1/2 solid structure Table 5 HMT338 Probe Dimensions Probe type [Probe Dimension Adjustment Range Standard 178 mm 120 mm Optional 400 mm 340 mm fitting body hex = 24mm tapered thread

3. PTFE tape (t=-60...+210 °C) NOTE: the tape does not lock

the parts together. Therefore, use two fork spanners (hex 24 and 27 mm) for tightening and opening the clasp nut of the probe 0507-025 Figure 29 Sealing of Fitting Body into Process Installation

User's Guide Tightening the Clasp Nut

1. Adjust the probe to a suitable depth according to the type of

2. Tighten the clasp nut first manually.

3. Mark the fitting screw and the clasp nut.

Tighten the nut a further 50 -602 (ca. 1/6 turn) with a wrench. If you have suitable torque wrench, tighten the nut to max 45 +5 Nm (33 +4 ft-Ibs).

max. 60° 0505-276 Figure30 Tightening the Clasp Nut The following numbers refer to Figure 30 on page 48: 1 = Probe 2 = Claspnut 3 = Fittingscrew 4 = Pen NOTE Take care not to over tighten the clasp nut to avoid difficulties when opening it. CAUTION Take care not to damage the probe body. A damaged body makes the probe less tight and may prevent it from going through the clasp nut. CAUTION In pressurized processes it is essential to tighten the supporting nuts and screws very carefully to prevent loosening of the probe by the action of pressure. M210566EN-H

Installation When installed in a process with a pressure differing from normal atmospheric pressure, please enter the pressure value of the process (in hPa or mbar) into the transmitter memory via the serial line (see command PRES and XPRES on page 96) or by using display/keypad. Optional Modules VAISALA Power Supply Module The AC (mains) power connection may be connected to the power supply module only by an authorized electrician. A readily accessible disconnect device shall be incorporated in the fixed wiring. 0506-027 Figure 31 Power Supply Module The following numbers refer to Figure 31: 1 = ConnectAC (mains) voltage wires to these terminals 2 = Grounding terminal 3 = Incasethe module is not installed in the factory: Connect wires from these terminals to the POWER 10. 35V 24V terminals of the mother board. 4 = + 5 = -

User's Guide Installation

1. Disconnect the power and open the transmitter cover.

2. Remove the protective plug from the cable gland and thread the

wires. In case the power supply module is installed in the factory, continue with the step 5.

3. Attach the power module to the bottom of the housing with four

screws. See the position Figure 2 on page 22.

4. Connect the wires from the terminals of the power supply module

marked with + and - to the terminals POWER 10. 35 V 24V on the motherboard of the transmitter.

5. Connectthe AC mains voltage wires to the power supply module

terminals marked with N and L.

6. Attach the grounding wire to the grounding terminal on the right-

hand side of the transmitter.

7. Connect the power. The LED on the cover of the transmitter is lit

Installation Galvanic Isolation for Output If galvanic isolation of the power supply line from the output signals is needed, HMT330 can be ordered with optional output isolation module. This module prevents harmful grounding loops. NOTE Output isolation module is not needed when using the power supply module. VAISALA Figure 32 Galvanic Output Isolation Module The following number refers to Figure 32: 1 = Outputisolation module Third Analog Output 0503-030 Figure33 Third Analog Output The following numbers refer to Figure 33: 1 = Flatcable pins 2 = Screw terminals for signal line 3 = DIP switches to select the output mode and range

User's Guide Installation and Wiring

• Disconnect the power. In case the analog output module is installed in the factory, continue with the step 4. Open the transmitter cover and fasten the analog output module to the position for MODULE 2 with four screws. Refer to Figure 2 on page 22. Connect the flat cable between the analog output module and the motherboard's connector for MODULE 2. Take out the protective plug from the cable gland and thread the wires. Connect the wires to the screw terminals marked with Ch+ and Ch-. Select the current/voltage output by setting ON either of the switches 1 or 2. Select the range by setting ON one of the switches 3 … 7. NOTE Only one of the switches 1 and 2 can be ON at a time. Only one of the switches 3 … 7 can be ON at a time. Channel 3 OFF | ON | Selection Current output selection, ON=Current output selected ion, ON=Voltage output selected JN= 0 p. 20
• mA selected on, ON= 4 p. 20
• mA selected 1 V selection, ON=0 p. 1
• V selected 0 p. 5
• V selection, ON=0 p. 5
• V selected 0 p. 10
• V selection, ON= 0 V selected. For service use only, keep always in OFF position. Voltage output sel 82/9/S/ricz}r 0508-029 Figure 34 Third analog output selection Connect the power. Select the quantity and scale the channel via the serial line or display/keypad, see section Analog Output Quantities on page 110. Fortesting the analog output, see section Analog Output Tests on page 112. For fault indication setting, see section Analog Output Fault Indication Setting on page 113. M210566EN-H p. 10

Installation Relays HMT330 can be equipped with one or two configurable relay modules. Each module contains two configurable relays. See the contact ratings in section Technical Specifications of Optional Modules on page 153. Installation and Wiring

1. Disconnect the power and open the transmitter cover. In case the

relay-module is installed in the factory, continue with step 5.

2. Attach the relay module to the bottom of the housing with four

screws. See the position in Figure 2 on page 22.

3. When the mains power is in use attach the grounding wire to the

4. Connect the flat cable between the relay module and the

MODULE 1 or MODULE 2 pins of the motherboard.

5. Take out the protective plug from the cable gland and thread the

6. Connectthe wires to the screw terminals: NO, C, NC. Refer to

section Selecting the Activation State of the Relay below. CAUTION Forinstallations in the USA: If your transmitter has both the relay module and a LAN or WLAN module, the maximum voltage you are allowed to connect to the relay module is 50 V.

7. Connect the power and close the cover.

Selecting the Activation State of the Relay The middlemost C terminal and either one of the terminals NO/NC must be connected. The polarity can be freely selected. NO Normally open C Common relay NC Normally closed Relay NOT activated: C and NC outputs are closed, NO is open Relay IS activated: C and NO outputs are closed, NC is open. NOTE For instructions on how to operate the relay (for example, select quantity for the relay output and set the relay setpoints) see section Operation of Relays on page 114. VAISALA

User's Guide ; DASER a) eo ® QD © 0503-037 Figure35 Relay Module The following numbers refer to Figure 35: 1 = Indication led for the relay 1 or3 2 = Relay test buttons 3 = Flatcable pins 4 = Indication led for relay 2 or4 WARNING The relay module may contain dangerous voltages even if the transmitter power has been disconnected. Before opening the transmitter you must switch off both the transmitter and the voltage connected to the relay terminals. WARNING Do not connect the mains power to relay unit without grounding the transmitter. 56 M210566EN-H

e F DFE «| [1 ô u nc | RXA 3 4 2 de 38 pararar sa | à = ©) Li 8 |" RE s A TA in 8 0503-029 Figure 36 RS-485 Module The following numbers refer to Figure 36: 1 = Flatcable pins 2 = Selection switches 3 = Screw terminals for wiring NOTE The markings on the module and in this manual are according to the line driver manufacturers’ application notes, where A is posive against B when measured with a voltmeter. When connecting the module, be prepared to swap the À and B wires if you have a communication problem. Installation and Wiring

1. Disconnect the power. In case the RS-485-module is installed in

the factory, continue with the item 4.

2. Open the transmitter cover and attach the RS-485 module to the

bottom of the housing with four screws.

3. Connect the flat cable between the RS-485 module and the

motherboard's pins MODULE1 (Communications). Pull the network wirings through the cable gland.

5. Connect the twisted pair wires (1 or 2 pairs) to the screw terminals

as presented in Table 6 below: VAISALA 57

User's Guide Table 6 Connecting the Twisted Pair Wires to the Screw Terminals Screw terminal Data line Data line (2-wire RS-485) (4-wire RS-485/422) 1 (not connected) RxB 2 (not connected) RxA 3 Data pair shield Data pair shield 4 B TxB 5 A TxA

6. If you use RS-485 (or RS-422) to connect just one HMT330 to a

master computer, enable the internal termination of HMT330 by switching switches 1 and 2 ON. Make sure that the master's end of the line is also terminated (by using master's internal termination or with a separate terminator). If you are connecting many transmitters to the same RS-485 bus, make sure that switches 1 and 2 are OFF and terminate the bus with separate terminators at both ends. This allows removing any transmitter without blocking the bus operation. NOTE If you use the internal termination of the transmitter at the end of the RS-485 bus (instead of using separate terminators) removing that transmitter will block the bus operation. 7... Use the bus type (4-wire/2-wire) to select the selection switch 3. In 4-wire mode RS-485 master sends data to the HMT 330 through terminals RxA and RxB and receives data from HMT 330 through terminals TxA and TxB.

ADDRESS AN 2/4 WIRE FS422 OF ds ! Si DE œumo [9 ---- AUNCTION BOX Table 8 2-Wire (Switch 3: Off) RS-485 master Data HMT330 A = A B Es B

8. When operating in communication mode RS-422, set both switches

3 and 4 to ON position (4-wire wiring is required for RS-422 mode).

9. Connect the power and close the cover.

LAN Interface The optional LAN interface enables an Ethernet connection to the transmitter. The user can establish a virtual terminal session using a telnet client program such as PuTTY. When the LAN Interface is in use, serial communication using the User Port is disabled. The LAN interface module must be installed at the factory (when ordering the transmitter), or by a Vaisala Service Center. Once installed, the module is automatically used by the transmitter. The physical connection to the network is made to the RJ45 connector on the LAN interface module, using a standard twisted pair Ethernet cable (10/100Base-T). Transmitters with the optional LAN interface are delivered pre-installed with a suitable cable and cable gland.

User's Guide The LAN interface can use both static and dynamic network settings. If the interface is configured to use dynamic settings, the network where the LAN interface is connected must have a DHCP server that provides the settings. The network configuration can be done using the optional display and keypad, or by using the service port. For instructions, see section LAN Communication on page 77. The LAN interface also provides a web configuration interface, which you can access by entering the IP address of the LAN interface in the address field of a web browser. For instructions on how to verify the current settings and status of the LAN interface, see section Device Information on page 101. 0709-03 Figure38 LAN Interface Module The following numbers refer to Figure 38 above:

Flat cable connector RJ45 connector with indicator LEDs for link and activity WLAN Interface The optional WLAN interface enables a wireless Ethernet connection (IEEE 802.11b) to the transmitter. The user can establish a virtual terminal session using a telnet client program such as PuTTY . When the WLAN Interface is in use, serial communication using the User Port is disabled. The interface supports Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). For WEP, 64 and 128 bit encryption is supported, with open system or shared key authentication. WPA is used in the Pre-Shared Key (PSK) mode, with either TKIP or CCMP protocol. Similary to the LAN Interface, the WLAN interface can use both static and dynamic network settings. If the interface is configured to use M210566EN-H

Installation dynamic settings, the network where the WLAN interface is connected must have a DHCP server that provides the settings. The WLAN interface also provides a web configuration interface, which you can access by entering the IP address of the WLAN interface in the address field of a web browser. 0802-103 Figure 39 WLAN Interface Module The following numbers refer to Figure 39 above:

Flat cable connector Connector for antenna cable (connected to transmitter cover) NOTE The WLAN interface is not recommended for use with the HMT331 fixed probe model (for wall-mounted applications). The HMT331 short cable probe is designed to be used with the WLAN interface. VAISALA Attaching the WLAN Antenna The LAN interface module must be installed at the factory (when ordering the transmitter), or by a V'aisala Service Center. Before taking the transmitter into use, the user must attach the antenna of the WLAN interface into the RP-SMA connector on the transmitter cover. The location of the antenna is shown in Figure 76 on page 158.

User's Guide Data Logger Module The optional data logger module extends the data storage for the measurement data. When the data logger is present, this storage is automatically used by the transmitter. The stored data can be browsed using the optional display module, and accessed through the serial connections. See sections Graphic History on page 66 and Data Recording on page 104. The data logger module contains non-volatile flash memory providing 4 years 5 months of storage for 3 parameters at a 10 second sampling interval. When the memory is full, the data recording will not stop. Instead, the oldest data is overwritten. For each parameter and observation period, the module stores the minimum and maximum values during the interval, as well a data trend value that is averaged from samples taken during the interval (see Table 9 on page 62). Table 9 Observartion Periods and Resolution Observation Period |Period for Trend/Max/Min Calculations (Resolution) 20 minutes 10 seconds 3 hours 90 seconds 1 day 12 minutes 10 days 2 hours 2 months 12 hours 1 year 3 days 4 years 12 days The quantities that are logged are the same that have been selected for measurement using the display/keypad or the serial line. When taking the transmitter into use, verify that the desired quantities are selected. If you change the quantities later, the transmitter will start logging the new quantities, and stop logging the quantities that are no longer selected. Changing the quantities does not delete any measurement data that is already in memory. The data logger module has a real time clock with a battery back-up. The clock has been set to the Coordinated Universal Time (UTC) at the factory, and its time cannot be set by the user. The data that is stored in the logger's memory is timestamped using the logger‘s clock. When date and time are set on the transmitter, they are stored to the transmitter's memory as an offset from the time on the logger's clock. When browsing the stored data, the time offset is applied to the timestamps shown in the graphical history, and data outputted from the serial port. The timestamps in the data logger's memory remain as they were originally stored. M210566EN-H

VAISALA Installation Y ou can compensate for the clock drift (less than +2 min/year) by setting the time on the transmitter. This updates the time offset used on the display and the serial port. Y ou can set the time by using the keypad/display or the serial commands. Figure 40 Data Logger Module 0706-068 The following numbers refer to Figure 40 above: 1 Flat cable pins 2 Battery After a reset or a power up, it will usually take at least 10 seconds before the data logger module is initialized. The real time clock and the data logging and reading functions are not available before the initialization is complete. The indicator LED on the module will blink green during normal operation. If the LED is lit in red color, there is a problem with the module. The transmitter will also indicate the problem by activating the "A dd-on module connection failure" error. If the module is not operating correctly, the transmitter must be sent to Vaisala for maintenance. The data logger module must be installed at the factory (when ordering the transmitter), or by a Vaisala Service Center. Once installed, the module is automatically used by the transmitter. When the module requires a new battery, the transmitter must be sent to Vaisala for maintenance.

8 RED (NC) 0503-026 Figure 41 Wiring of Optional 8-Pin Connector Table 10 Wiring of 8-Pin Connector PIN/Terminal | Wire Serial Signal Analog Signal RS-232 (EIA-232) |RS-485 (EIA-485) 1 White Data out TX A = 2 Brown (serial GND) (serial GND) Signal GND (for both channels) 3 Green = = Ch2+ 4 Yellow = = Ch1+ 5 Grey Supply - Supply - Supply - 6 Pink Supply + Supply + Supply + 7 Blue Data in RX B - 8 Shield/R ed | Cable shield Cable shield Cable shield 64 _ _ M210566EN-H

OPERATION This chapter contains information that is needed to operate this product. Getting Started Within a few seconds after power-up the LED on the cover of the transmitter is lit continuously indicating normal operation. When using the optional display and turning the transmitter on the first time, the language selection menu window opens. Select the language with Y A arrow buttons and press the SELECT button (the left-hand [1 button). The pressure has an effect on humidity calculations and accuracy. Therefore, accurate calculations can be achieved only when the ambient pressure is taken into consideration. For instructions on how to set the pressure, see section Pressure Compensation Setting on page 95. Display/Keypad (0 ptional) Basic Display Display shows you the measurement values of the selected quantities in the selected units. Y ou can select 1 … 3 quantities for the numerical basic display (see section Changing Quantities and Units on page 92.) VAISALA 65

: C GRAPH o ® 0705-209 Figure 42 Basic Display The following numbers refer to Figure 42: 1 = The Info shortcut button, see section Device Information on page 101 2 = The Graph shortcut button, see section Graphic History on page 66 3 = Quantities selected for display NOTE From any view, a four-second press on the right-hand function button takes you directly to the basic display. Graphic History The graphical display shows the data trend or min/max graph of the selected quantities, one at a time. The graph is updated automatically while measuring. 20min 15min 10min 5mmn DE-A0 Figure 43 Graphical Display Trend graph: Shows you a curve of average values. Each value is a calculated average over a period. See Table 11 on page 67 below. Max/min graph: Shows you the minimum and maximum values in a form of curve. Each value is max/min over a time period. See Table 11 below. M210566EN-H

VAISALA Operation Table 11 Periods for Trend and Max/Min Calculations Observation Period |Period for Trend/Max/Min Calculations (Resolution) 20 minutes 10 seconds 3 hours 90 seconds 1 day 12 minutes 10 days 2 hours 2 months 12 hours 1 year 3 days 4 year* 12 days

• Shows the maximum logging period of the data logger module (available when data logger module is installed) Use the following functions in the graphical display: Press the NEXT button to change between the trend graph and max/min graph for the quantities selected for display. Press the EXIT button to return to the basic display. Press the Y A arrow buttons to zoom in and out in the graph window. Press the € arrow buttons move the cursor (vertical bar) along the time axis. The cursor mode allows you to observe individual measuring points. The numerical value at the cursor position is shown at the left upper corner. The right upper corner shows the time from the present to the chosen moment (without the logger module), or the date and time at the cursor position (when the logger module is installed). If the optional data logger module is installed, you can scroll the cursor off the screen to move to a new point on the time axis. The new date will be displayed, and the cursor will be centered at the date where the cursor scrolled off the screen. T: 0.41 °C AT. 2/21/2004 tre

11/2004 11/2006 NEXT EXIT 0706-030 Figure 44 Graphical Display with Data Logger The time that is shown below the graph is adjusted with the current time offset of the transmitter. If you change the transmitter's date and time setting, the displayed timestamps in the history graph change accordingly. For an explanation of the effect of changing the date and time manually, see section Data Logger Module on page 62.

User's Guide Table 12 Graph Information Messages in Cursor Mode Message Interpretation Power outage Power failure (marked also with dashed vertical line) No data Quantity has not been selected for the display Device failure General device failure T meas. failure Temperature measurement/sensor failure RH meas. failure Humidity measurement/sensor failure Adj. mode active Adjustment mode active (data recorded in the adjustment mode is not displayed) A question mark after time tells you that at least one power failure (dashed vertical line) has occurred after the chosen moment. In this case, the exact time difference between the present and the cursor position is not exactly known. Menus and Navigation Y ou can change settings and select functions in the menus.

1. Openthe MAIN MENU by pressing any of the Y À Bb arrow

5. Function button EXIT retumns you back to the basic display.

VAISALA Operation Some menu items, such as Purge in the Measuring menu, are only shown if supported by the transmitter and the installed options. Changing the Language

1. Go back to the basic display by keeping the right-hand [1] button

pressed for four seconds.

2. Openthe Main menu by pressing any of the W À 4h buttons.

Scroll to the System menu option, and press the button. The menu option is indicated with the wrench # symbol.

4. Scroll to the Language menu option, and the left-hand [7] button.

The menu option is indicated with the flag À symbol.

5. Select the language with the W A buttons, and confirm the

selection by pressing the left-hand [71 button.

6. Press the right-hand{—] button to exit to the basic display.

Rounding Setting Round off one decimal by using the Rounding function. The default setting is rounding on. Rounding has no effect on quantities without decimals.

1. Openthe MAIN MENU by pressing any of the W À 4 arrow

2. Select Display and confirm by pressing the arrow button.

. Select Rounding and press ON/OFF button.

4. Press EXIT to retum to the basic display.

Display Backlight Setting As a default the display backlight is always on. In the automatic mode the backlight stays on for 30 seconds from the last press of any button. When pressing any button, the light turns on again.

1. Openthe MAIN MENU by pressing any of the W À 4 arrow

1. Openthe MAIN MENU by pressing any of the Y À Bb arrow

3. Select Contrast, press the ADJUST button.

4 Adjust the contrast by pressing the 4 arrow buttons.

5. Press OK and EXIT to return to the basic display.

Keypad Lock (Key guard) This function locks the keypad and prevents unintentional key presses.

1. Keep pressing the left-hand function button for 4 seconds to lock

the keypad (at any display).

2. To unlock the keypad, press the O PEN button for 4 seconds.

Menu PIN Lock Y ou can prevent unauthorized changes of the device settings by activating the menu PIN lock. When this function is activated, the basic display and graphical view are available but access to the menus is locked. The key symbol indicates the activation of this feature.

1. Openthe MAIN MENU by pressing any of the Y À € arrow

Enter a PIN code by using the Y A arrow buttons. Press OK to confirm the setting. Now the PIN lock is on and a key symbol is shown in a display.

5. Press EXIT to retumn to the basic display. Returning to the menu is

possible only by entering the correct PIN code. When you want to turn off the PIN lock, go to the menu by giving the PIN code and select System, Menu PIN, press OFF button. In case you have forgotten the PIN code, open the transmitter cover and press the ADJ button once. Wait for a few seconds and the adjustment menu opens. Select Clear menu PIN, press ]CLEAR. NOTE Y ou can also disable the keypad completely with serial command LOCK. M210566EN-H

VAISALA Operation Factory Settings Use the display/keypad to restore the factory settings. This operation does not affect the adjustments. Only settings available in the menus are restored. . Press any of the arrow buttons to open the MAIN MENU.

2. Select System by pressing the arrow button.

Select Factory settings and press the REVERT button to confirm your selection. Press the Y ES button to reset all settings to the factory defaults. See section General Settings on page 92 for a description of the other menu options. Display Alarms The Display Alarm feature provides two independently configurable alarms for transmitters with the display/keypad option. Each alarm tracks a selected quantity, with a freely configurable low and high limit. Each alarm also has a configurable hysteresis value to prevent unnecessary triggering when the measurement fluctuates around an alarm limit. The alarms can be configured for any quantity supported by the transmitter. The configuration of the Display Alarms can only be done using the display/keypad option. An alarm is activated when the selected quantity goes higher than the high limit, or lower than the low limit, much in the same way as the relays. When an alarm is activated, an alarm note is displayed on the display, and the lights of the display will blink. AP A 7: ALARM T > 25.0 °C Alarm limit crossed on 2008-02-19 at 8:09. 0802-041 Figure 46 Display Alarm Active Multiple alarms can be active at the same time; the alarm that was triggered first will be shown on the display. The next active alarm is revealed when the currently shown alarm is acknowledged by pressing the OK button.

User's Guide Note that activated alarms are only shown on the screen. There are no alarm messages output to the serial line, or markers placed in the graph data. A fter an alarm has been acknowledged, you must refer to the data graphs to see when the measured quantities have exceeded the limits. Configuring a Display Alarm

1. Enterthe Main Menu by pressing an arrow key on the keypad.

2. Use the arrow keys to select Display, followed by Alarms, to open

the Display Alarms menu. The Display Alarms menu shows the currently enabled and disabled alarms. DISPLAY _ALARHS

& bAlarm 2 (disable: EXIT 0802-069 Figure 47 Display Alarms

3. Use the arrow keys to select an alarm to configure. The alarm

editing page opens. NOTE Changes you do on the alarm editing page will take effect immediately, and may cause an alarm to appear on the screen.

4. To select a quantity for the alarm, press the Change button and

select the quantity from the list.

Operation move the cursor. Select the OK button to accept the modified value, or Cancel to undo the modification.

6. Set a suitable Hysteresis value to prevent the alarm from being

triggered unnecessarily by small measurement changes that pass the alarm limit repeatedly. 7... Setor clearthe Alarm enable checkbox to enable or disable the alarm.

8. Press the Exit button to leave the alarm configuration screen and

return to the basic view. MI70 Link Program for Data Handling The real-time window function of the MI70 Link program allows you to monitor transmitter readings directly with a PC when transmitter is connected with a serial or USB cable. Y ou can also transfer recorded data from the main transmitter memory in numeric or graphical format, for further use in a spreadsheet program (such as Microsoft Excel) or virtually any other application. Follow the steps below to connect your transmitter to the MI70 Link program using the serial interface:

1. Connect your PC to the transmitter. Refer to section Serial Line

Communication on page 73.

2. Check that the HMT330 is powered.

Start the MI70 Link program.

4. Start using the program. There is usually no need to select a COM

port manually, the MI70 Link software can detect it automatically. The MI70 Link program, and the optional connection cables, are available from V aisala. See list of accessories in section Options and Accessories on page 155. Serial Line Communication VAISALA Connect the serial interface by using either the user port or the service port. For permanent interfacing to host system, use the user port. Y ou can change the serial settings and operate in RUN, STOP and POLL modes. For temporary connections, use the service port. The service port is always available with fixed serial settings.

© —Ù É | Der Ci =] 4 © i

0605-039 Figure 49 Service Port Connector and User Port Terminal on Mother Board The following numbers refer to Figure 49 above: Service port connector User port terminals User Port Connection Use a suitable serial cable between the user port RxD, GND and TxD screw terminals and the PC serial port, see Figure 50 on page 74. Table 13 Default Serial Communication Settings for the User

Operation Connections to pins 4, 6, 7 and 8 on PC serial port are required only if you are using software requiring hardware handshaking. After power-up the transmitter (in STOP-mode) outputs the software version and the command prompt. HMT330/5.00

In RUN mode a measurement output starts immediately after power-up. In POLL mode, the transmitter does not output anything after power-up (see section SMODE on page 99). NOTE User port cannot be used when the RS-485 module is connected. VAISALA Service Port Connection Connection Cables To connect to the service port, you need a suitable cable with an RJ45 connector. Depending on the connections of your PC, you can either use the Serial Connection Cable (optional accessory 1944677) or the USB- RJ45 Serial Connection Cable (optional accessory 219685). The USB cable enables you to connect the transmitter to a PC via a standard type A USB port. Note that the USB cable does not enable high speed data transfer, since the bit rate is limited by the serial interface of the service port. Installing the Driver for the USB Cable Before taking the USB cable into use, you must install the provided USB driver on your PC. When installing the driver, you must acknowledge any security prompts that may appear. The driver is compatible with Windows 2000, Windows XP, Windows Server 2003, and Windows Vista.

1. Check that the USB cable is not connected. Disconnect the cable if

you have already connected it.

2. Insert the media that came with the cable, or download the driver

from www.vaisala.com.

3. Execute the USB driverinstallation program (setup.exe), and

accept the installation defaults. The installation of the driver may take several minutes.

4. Afterthe driver has been installed, connect the USB cable to a USB

port on your PC. Windows will detect the new device, and use the driver automatically.

5. Theinstallation has reserved a COM port for the cable. V'erify the

port number, and the status of the cable, using the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu. Windows will recognize each individual cable as a different device, and reserve a new COM port. Remember to use the correct port in the settings of your terminal program. If you are using the V'aisala MI70 Link application, you do not need to check the COM port, as the MI70 Link detects the USB connection automatically. There is no reason to uninstall the driver for normal use. However, if you wish to remove the driver files and all Vaisala USB cable devices, you can do so by uninstalling the entry for Vaisala USB Instrument Driver from the Add or Remove Programs (Programs and Features in Windows Vista) in the Windows Control Panel. Using the Service Port

1. Unfasten the screws on the transmitter cover, and open the

2. Connect the desired cable (serial interface cable or USB cable) to

your PC and the service port connector on the transmitter. For the location of the service port, refer to Figure 49 on page 74.

3. Open a terminal program and set the communication settings as

follows: Table 14 Communication Settings for the Service Port Parameter Value Bauds 19200 Parity None Data bits 8 Stop bits 1 Flow control None For a detailed explanation of using a terminal program, see section Terminal Program Settings on page 84.

4. Power-up the HMT330.

Operation LAN Communication VAISALA _ To enable LAN communication, a LAN or WLAN interface must be physically connected to the network, and the networking settings must be suitable for your network. For a description of interfaces, see sections LAN Interface on page 59 and WLAN Interface on page 60. The LAN and WLAN interfaces both operate by accessing the serial interface (User Port) of the transmitter. All commands that are available using the serial interface are available through the LAN and WLAN interfaces; refer to section List of Serial Commands on page 87. For instructions on how to connect using a terminal program, see section Terminal Program Settings on page 84. IP Configuration The IP settings of the LAN and WLAN interfaces are described in Table

15. The current settings can be viewed on the serial line or using the

device information display; see section Device Information on page 101. Table 15 IP Settings for the LAN and WLAN Interfaces Parameter Description Automatic configuration Ifenabled, the transmitter will retrieve its network (DHCP) settings (including the IP Address) from a server in the network. If disabled, static network settings are used instead. Web configuration If enabled, the settings of the interface can be changed using à web browser. The configuration page can be accessed by browsing to the IP address ofthe transmitter. IP Address The four part network ID of the transmitter. Must be set manually if automatic configuration is not used. Example value: 192.168.0.222 Netmask Used together with the IP address to determine which network the transmitter is a part of. Must be set manually if automatic configuration is not used. A common netmask is 255.255.255.0. Gateway IP address of the server that enables the transmitter to access other networks. Must be set manually if automatic configuration is not used. Example value: 192.168.0.1 MAC The MAC address is the unique hardware address ofthe LAN or WLAN interface. Cannot be changed.

User's Guide Using Display/Keypad You can configure the IP settings of the LAN and WLAN interfaces using the display/keypad as follows:

1. Press any of the arrow buttons to open the MAIN MENU.

2. Pressthe b arrow button to select Interfaces.

3. Press > arrow button to select Network settings. There will be a

delay as the transmitter refreshes the network information. 4 You are now in the Network Interface menu. Selecting the IP configuration option opens the IP configuration menu. METUORK INTERFACE # Web configuration # Disconnect all

0802-13 Figure 51 Network Interface Menu The Network Interface menu also allows you to enable or disable the Web configuration option, or Disconnect all users that are currently accessing the LAN or WLAN interface.

VAISALA Operation Using Serial Line Use the serial line command NET to view or set the network settings for the LAN and WLAN interfaces. Y ou can also refresh the network information or disconnect all active connections. NET [REFRESH] [DISCONNECT] [DHCP WEB] [DHCP IP SUBNET GATEWAY WEB] where REFRESH = Updates the network information and displays it DISCONNECT = Disconnects all current sessions DHCP ON or OFF. Enables or disables the automatic IP configuration. WEB = ON or OFF. Enables or disables the Web Configuration page. IP = The four part network ID of the transmitter. Must be set manually if automatic configuration is not used. SUBNET = Used together with the IP address to determine which network the transmitter is a part of. Must be set manually if automatic configuration is not used. GATEWAY = IP address of the server that enables the transmitter to access other networks. Must be set manually if automatic configuration is not used. Examples: >net refresh

Wireless LAN Configuration The settings of the WLAN interface are described in Table 16. The current settings can be viewed on the serial line or using the device information display; see section Device Information on page 101. Table 16 Wireless LAN Settings Parameter Description SSID The service set identifier (i.e. network name) of the wireless network to connect to. 1 … 32 characters. Security type The security type of the wireless network. The options are: OPEN OPEN/WEP WPA-PSK/TKIP WPA-PSK/CCMP All other choices except OPEN require a security key; see below. Security key The encryption key or passphrase that is used with an encrypted network. Using Display/Keypad You can configure the Wireless LAN settings using the display/keypad as follows:

1. Press any of the arrow buttons to open the MAIN MENU.

2. Pressthe b arrow button to select Interfaces.

3. Press the arrow button to select Network settings. There will be

a delay as the transmitter refreshes the network information. 4 Pressthe b arrow button to select Wireless LAN settings. M210566EN-H

5. The Name entry on the page shows the SSID of the currently

selected wireless network. To change the SSID, press the SET button. Use the A Y arrow buttons to change the character under the cursor, and <> arrow buttons to more the cursor. Press the OK button when done. Enter network name {SSID}: [OK _] CANCEL 0802-10 Figure 54 Entering Network SSID

6. To change the currently selected Network type, select the Type

7. If you have selected an encrypted network type (WEP or WPA),

you must enter the security key to be used. Select the Key/passphrase entry and press the Set button. Enter the key in the same way as the SSID, and press the OK button. With the WEP encryption you must enter the encryption key in hexadecimal (10 hexdecimals for 64-bit encryption or 26 hexadecimals for 128-bit encryption). A WPA key must be

8. 63 ASCII characters.

in the Wireless Network Settings menu. Y ou will be asked to confirm the new settings. Note that when new settings are saved, all currently active WLAN connections are disconnected. Using Serial Line Use the serial line command WLAN to view or set the wireless network settings. If you set an encrypted network type, you will be asked to enter the security key. With the WEP encryption you must enter the encryption key in hexadecimal (10 hexdecimals for 64-bit encryption or 26 hexadecimals for 128-bit encryption) or with plain A SCII characters (5 characters for 64-bit encryption or 13 characters for 128-bit encryption). A WPA key must be 8. 63 ASCII characters.

where SSID = The network name in 1 … 32 characters TYPE = The security type of the wireless network. The options are: OPEN OPEN/WEP WPA-PSK/TKIP WPA-PSK/CCMP Examples: >wlan ? Network SSID : WLAN-AP Type : OPEN

>wlan accesspoint wpa-psk/tkip Network SSID : accesspoint Type : WPA-PSK/TKIP WPA-PSK phrase ? thequickbrownfox

Warning: Active connection will be disconnected.

Telnet Settings When a telnet connection is established via the LAN or WLAN interface, the session has the same communication mode, run interval, poll address and echo settings as the serial port (user port) session would have. These settings can be changed using the display/keypad, using the serial line (user port or service port), or on-the-fly during the telnet session. The display menu path to the telnet settings is: Main menu Interfaces Network Interface Telnet settings. The commands for changing the settings are SMODE, INTV, ADDR, and ECHO. Web Configuration for LAN and WLAN The LAN and WLAN interfaces both have a web configuration page that is accessible using a browser. If you have not disabled the page from the network settings, you can access it with a web browser at the IP address of the interface. When accessing the web configuration page, you must first log in. Username: user Password: vaisala The web configuration page provides similar network configuration options as the serial line and the display/keypad. It also has additional options for advanced users. For example, there are more options for securing the wireless network. If these additional options are used, they will appear as custom configurations when viewed from the serial line or the display/keypad. VAISALA 83

User's Guide ISALA Vaisala WLAN Interface Configuration and Management Home Confiauration Network Configuration Netnork 7 JP Settings. {Configure tha network below. IPv6 settings are shown here for informational purposes. TPv6 Link Local Address: | F280::240:9DFFFE2C:D1DE Site Local Adress: none 1Pv4 and DNS © obtain an IP address automaticaly using DHCP * Q Use the following IP adére Default Gateway: + Primary DNS: + secondary DNS: |

}_ Wireless LAN Settings »_ Wireless Security Setings + Wireless 802.1x Authentieztion Setrings } Advanced Network Settings 0802-114 Figure 56 Web Configuration Interface for WLAN Terminal Program Settings The instructions below describe how to connect to the HMT330 using the PuTTY terminal application for Windows. Perform the necessary cabling and configuration of the transmitter before following the instructions. PuTTY is available for download at www.vaisala.com. Opening a Serial/USB connection

1. Power up the HMT330 and start the PuTTY application.

2. Selectthe Serial & USB settings category, and check that the

correct COM port is selected in the Serial or USB line to connect to field. Change the port if necessary. If you are using a V'aisala USB cable, you can check the port that it uses by clicking the USB Finder... button. This opens the Vaisala USB Instrument Finder program that has been installed along with the USB drivers. 84 M210566EN-H

3. Check that the other serial/USB line settings are correct for your

connection, and change if necessary. The default settings (shown in Figure 1) are used by the Service Port of the HMT330. À PuTTY Configuration (HE Category: & Session Options controling local serial and USB Ines G: Terminal Select a señal/USB ne &- Window 3 Connection Seralor USB line to connectto [COM Dai USE Finder. Proxy Telnct Configure the serial/USB line Rlogin Serial & USB Speed (baud) 19200 ] Data bits 8 ] Stop bis 1 ] Party None v Bow control None | [ou J[_Hb |] (@en J( Canca 0810-070 Figure 57 Opening a Serial Connection

4. Click the Open button to open the connection window and start

using the serial line. If PuTTY is unable to open the serial port you selected, it will show you an error message instead. If this happens, restart PuTTY and check the settings. Opening a Telnet session (LAN/WLAN) NOTE The instructions below assume that the LAN/WLAN interface on the transmitter is correctly configured and the network connection is already done.

1. Power up the instrument and start the PuTTY application. If your

transmitter acquires a network address using DHCP, wait for a minute for this to complete, then verify the address from the transmitter.

3. Enterthe IP address of your transmitter in the Host Name (or IP

address) field. If you do not know the port, the default port 23 is likely correct. uTTY Configuration Category: GE [ eu | 5: Terminal Speciy the destination you went to connect to & Window ns u n & Connection Name (or IP address) R Data [1821680 12 IE ] Proxy Connection type: Telnet OBaw ©lenet ORlogn © Serial D USB Load, save or delete a stored session Saved Sessions Defauit Settings Ci) Cicse window on ext OAmays © Never © On on clean ext C_æ ] 0810-071 Figure 58 Opening a Telnet Connection 4 Click the Open button to open the connection window and start using the telnet session. If PuTTY is unable to connect the IP address you entered, it will show you an error message instead. If this happens, check the IP address and the connections, restart PuTTY, and try again. M210566EN-H

List of Serial Commands The bold text in the brackets is the default setting. To issue a command, VAISALA _ type it on your computer and Operation press the Enter key. Table 17 Measurement Commands Command Description R Start the continuous outputting S Stop the continuous outputting

INTV [0 255 S/MIN/H]

Set the continuous output interval (for RUN mode) SEND [0 … 99] Output the reading once SEND D Outputting the reading with the raw data SMODE Setthe serial interface mode

Add time to SEND and R outputs

Add date to SEND and R outputs

Add the state of probe heating and chemical purge in connection with SEND and R commands UNIT Select the metric or non-metric output units

User's Guide Table 19 Data Recording Commands Command Description DIR Display recorded files PLAY [0 21]J[START END] | Output recorded data file. Start and end times can only be specified if the data logger module is installed. The times must be given in the following format: yyyy-mm-dd hh:mmiss DSEL Select data recording and display quantities. DELETE Delete all data files, including the memory of the optional data logger module UNDELETE Recover the deleted files that have not been overwritten Table 20 Chemical Purge Commands Command Description PUR Set the automatic chemical purge PURGE Start the manual chemical purge Table 21 Calibration and A djustment Commands Command Description CRH Relative humidity calibration CT Temperature calibration CTA Additional temperature probe calibration FCRH Relative humidity calibration after sensor change CTEXT Give the text to calibration information field CDATE Setthe calibration date ACAL Analog output calibration Table 22 Setting and Testing the Analog Outputs Command Description AMODE View the analog output modes ASEL Select the parameters for the analog outputs ITEST Testthe analog outputs AERR Change the analog error output values Table 23 Setting and Testing the Relays Command Description RSEL Set and view the relays RTEST Testthe relays 88 _ _ M210566EN-H

VAISALA _ Operation Table 24 Other Commands Command Description ? Output information about the device 7? Output information about the device in POLL mode

Turn the serial interface echo ON/OFF ERRS List present transmitter errors FILT Setthe result filtering FIND All devices in POLL mode send their addresses HELP Listthe most common commands LOCK Lock the menu and disable the keypad PRES [hPa] Setthe value for pressure compensations VERS Display the software version information XHEAT Sensor heating XPRES [hPa] Setthe value for pressure compensations, temporarily Getting Measurement Message from Serial Line Starting Continuous Outputting

Enter the R command to start the continuous output of measurements. Example:

If a value is too long to fit to the allocated space in the output, or if there is an error in outputting the quantity, the value is displayed with stars ‘*”. Example: RH=XX#X,*X GRH T= 31.0 'C Y ou can change the format of the output with the following commands: -_ Outputting interval can be changed with the INTV command. -_ Output message format can be changed with the FORM command. -__ Status of chemical purge and probe heating can be added with the FST command. -_ Date and time information can be added with commands FDATE and FTIME

User's Guide Stopping Continuous Outputting

Use the S command to end the RUN mode. After this command all other commands can be used. Y ou can also press the Esc button or reset the transmitter to stop the outputting. See command SMODE to change the default (power-up) operation mode. Outputting Reading Once SEND Use the SEND command to output the reading once in STOP mode. The output format depends on which parameters the transmitter can output. Examples: RH= 98.4 %RH T= 31.1 'C RH= 98.4 %RH T= 31.1 'C Td= 36.0 ‘C Tdf= 36.0 'C a= 42.4 g/m3 x= 38.8 g/kg Tw= 30.8 ‘C ppm= 62414 pw= 59.53 hPa pws= 60.52 hPa h= 130.7 kJ/kg Outputting Reading with Raw Data SEND D Example: >send d 24.1720 15.0399 -3.5743 189.2324 15.0709 15.0399

Where the readings (from the left) are: 241720 = Temperature of the humidity probe ( °C) 15.0399 = RH (%RH) -3.5743 = Tdf(C) 189.2324 = Capacitance (pF) 15.0709 = RH raw: calculated from scaled capacitance (%RH) 15.0399 = Enhancement factor corrected RH (%RH) 23.9765 = Temperature of the additional temperature probe (optional) (£C) M210566EN-H

VAISALA Operation Formatting Serial Line Message FTIME and FDATE FTIME and FDATE commands will enable/disable output of time and date to the serial line. To add time to R and SEND outputs enter: FTIME [x] To add date to R and SEND outpuis enter: FDATE [x] where x = ONorOFF Example: >send RH= 98.4 RH T= 31.0 ‘'C >ftime on Form. time 1 ON >send 03:47:59 RH= 98.4 %RH T= 31.0 'C >fdate on Form. date 1 ON >send 2004-07-05 03:48:03 RH= 98.4 %RH T= 31.0 'C

FST To output the state of optional probe heating and chemical purge in connection with SEND and R commands enter: EST [x] where x = ONorOFF (default) Example: >fst on Form. status 1 ON >send N © RH= 40.1 %RH T= 24.0 'C Td= 9.7 'C Tdf= 9.7 'C a=

For more information on chemical purge, see section Chemical Purge (Optional) on page 124. Where the state of the probe is indicated by the following letters and values: IN..xxx {= [Normal operation [where hxxx|= [Probe heat power X xxx | Sensorheating here xxx |= [Sensor temperature (°C) H..xxx (Chemical purge [wherexxx [= [Sensor temperature (°C) S..xxx |= Sensor cooling here xxx |= Sensor temperature (°C) after purge General Settings Changing Quantities and Units To change quantities and units use serial commands or the optional display/keypad. See Table 3 on page 19 for available quantities and Table 4 on page 19 for optional quantities. NOTE Only the quantities selected when ordering the device can be selected as a display output quantity. Using Display/Keypad Use display/keypad to select the display output quantities. Press any of the arrow buttons to open the MAIN MENU. Press the > arrow button to select Display. Press > arrow button to select Quantities. Select the quantity by using the À Y arrow buttons. Confirm the selection by pressing SELECT. Y ou can select 1 … 3 display quantities at a time.

5. Press EXIT to retumn to the basic display.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Pressthe b arrow button to select Display.

3. Usethe A Y arrow buttons to select Units. Confirm the selection

by pressing the right-hand arrow button. 92 M210566EN-H

Chapter 4 2 Operation

4 Usethe A Y arrow buttons to select display units. Confirm the selection by pressing CHANGE. The unit changes from metric to non-metric or the other way round.

5. Press EXIT to return to the basic display.

NOTE Changing the display quantities/units (by using the display/keypad) has no effect on the serial output data. VAISALA Using Serial Line Use the serial line command FORM to change the format, and the command UNIT to select metric or non-metric output units. FORM Use the serial line command FORM to change the format or select a certain quantities for the output commands SEND and R. FORM [x] where x = Formatterstring The formatter string consists of quantities and modifiers. If no formatter string is entered, the command will display the currently active formatter string. Note that the hash symbol “#” is shown as a backslash “\” when viewing the current formatter string. Example: >form

3.1 "RH=" RH " " U4 3.1 "T=" T " " U3 3.1 "Tdf=" Tdf " " U3

3.1 "Td=" Td " " U3 3.1 "a=" à " " U7 4.1 "x=" x " " U6 3.1

“Tw=" Tw " " U3 6.0 "H20=" H20 “ “ U5 4.2 "pw=" pu “ " U4

4.2 "pus=" pus " " U4 4.1 “h=" h " " U7 3.1 "dT=" dT " " U3

When entering the command, use the abbreviations of the quantities. For more information on quantities, see Table 3 and Table 4 on page 19. The modifiers are presented in Table 25 on page 94.

Operation UNIT Use the UNIT command to select metric or non-metric output units: UNIT [x] where x = MorN where M = Meticunits N = Non-metric units NOTE This command changes both the serial output and display units to either metric or non-metric units. When you want to output both metric and non-metric units simultaneously on the display, select the display units later by using the display/keypad. Pressure Compensation Setting The pressure has an effect on humidity calculations and accuracy. Therefore, accurate calculations can be achieved only when the process pressure is taken into consideration. Note that conversions from mmHg and inHg are defined at 0°C and for mmH20 and inH20 at 4°C. NOTE Pressure compensation is intended to be used in normal air only. When measuring in other gases, please contact V'aisala for further information. VAISALA Using Display/Keypad Use display/keypad to set the pressure compensation. To select the pressure unit using display/keypad, see section Changing Quantities and Units on page 92.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select Measuring and press the arrow button to confirm your

confirm you selection.

4. Press SET and enter the pressure value in the chosen unit by using

5. Press OK and EXIT to return to the basic display.

Using Serial Line PRES and XPRES Command XPRES should be used if the value is changed frequently. Its value is not retained at reset, and when set to 0; last value set with PRES is used instead. Use the serial line and do the following: PRES [aaaa.a] XPRES [aaaa.a] where aaaa.a =A bsolute process pressure (hPa) Example: >pres Pressure : 1013.00 hPa ? >pres 2000 Pressure : 2000.00 hPa

Operation Date and Time Using Display/Keypad If the optional Data Logger Module is installed, you can change the time and date using the display/keypad. Press any of the arrow buttons to open the MAIN MENU.

2. Select System and press the arrow button to confirm your

4. Press the SET button to enter the adjustment mode, and use the

arrow buttons to select and change the values.

5. You can also change the date and time formats that are shown in

the graphs. The selected formats are only used in graphical display, they do not change the formats that are used in the serial communication.

6. Press EXIT to retum to the basic display.

Using Serial Line To set time enter the TIME command. To set date enter the DATE command. TIME DATE These time and date settings are shown on the timestamps of PLAY command. When you want to include time and date in the R and SEND commands, use the FTIME and FDATE commands. Example: >TIME Time : 13:42:49 ? >DATE Date : 2007-05-31 ? NOTE If the optional Data Logger Module is not installed, time and date are cleared to 2000-01-01 00:00:00 at reset or at power failure. VAISALA

User's Guide User Port Serial Settings Using Display/Keypad The communication settings for the user port can be changed via the serial line or by using the optional display/keypad. The communication settings for the service port are fixed and not changeable.

Press any of the arrow buttons to open the MAIN MENU. Select Interfaces and press the arrow button to confirm your selection. Select Serial interface and press the arrow button to confirm your selection. Select Bit rate/Serial format/Comm. mode by pressing the CHANGE button. Use the A Y arrow buttons to select and press SELECT to confirm your selection. If you selected RUN communication mode, select RUN interval for and press SET to confirm your selection. Use the arrow buttons to set the measuring interval and the unit. Press OK to confirm your settings. If you selected POLL communication mode, select POLL address and press SET to confirm your selection. Use the arrow buttons to set the transmitter address. Press OK to confirm the setting. Use the arrow buttons to select ECHO. Press ON to tumntoiton. Press OFF to turn it off. Press EXIT to return to the basic display. The new user port settings set using the display/keypad are effective immediately. M210566EN-H

SMODE Use the command SMODE to set the user port start-up operating mode. SMODE [xxxx] where xxx = STOP, RUN orPOLL

User's Guide Table 27 Selection of Output Modes Mode Output Available Commands STOP _|Only with the SEND command All (default mode) RUN Automatic output Only command S POLL |Only with the SEND [addr] Use with RS-485 buses, see command Operation of the RS-485 Module on page 120. Selected output mode will be activated after power outages. INTV Use the command INTV to set the outputting interval for the RUN mode. INTV [xx yyy] where xxx = Outputinterval (0 … 255). 0: the fastest possible output rate. yyy = Unit(s, minorh) Example: >INTV 10 min Output intrv.

10 min ECHO Use the command ECHO to set the user port echo. The command either enables or disables echo of characters received. ECHO [x] where x = ON (default) or = OFF NOTE Y ou can use the SERI, SMODE, INTV and ECHO commands to change/view the user port settings even if you are currently connected to the service port. M210566EN-H

VAISALA Operation Data Filtering The averaging data filter calculates an average over a certain period of time. The lowest measurement noise is achieved with the extended filtering. There are three filtering levels available. Table 28 Filtering Levels Setting Filtering level OFF No filtering ON (default) Standard = short filtering (approximately 15 s moving average) EXTENDED Extended filtering (default: approximately 1 min average) Use display/keypad to set the filtering level. Press any of the arrow buttons to open the MAIN MENU. Select Measuring by pressing the b arrow button. Select Filtering and press CHANGE to confirm your selection. Select Off/Standard/Extended and press SELECT to confirm your selection.

5. Press EXIT to return to the basic display.

FILT Use the serial line command FILT [xxx] to set the filtering level. FILT [xxx] where xxx = OFF, ON or EXT (default = OFF) Device Information Use the display/keypad or the serial line to display the device information. Press the INFO button in the basic display to see the following information: Current sensor operation (for example, chemical purge), if any, in progress Present or past unacknowledged errors, if any Device information -_ Adjustment information fed by the user Measuring settings

User's Guide -_ Information on chemical purge settings (when applicable) -_ Display Alarm settings -_ Serial interface information -_ Network settings and status of the LAN and WLAN interfaces -_ Analog output information -__ Relay output information (when applicable) LATE SERIAL INTERFACE Port type: R5-232 4800 b/s, 7 E 1 Comm. mode: STOP Echo is on. MORE [OK _] 0706-02 Figure 59 Device Information on Display Proceed in the information views by pressing the MORE button as many times as you get the desired information. Y ou can browse through the information displays also with arrow buttons. Press OK to return to the basic display.

Use the serial line command ? to check the current transmitter configuration. Command ?? is similar but can also be used if the transmitter is in POLL mode. Example:

VAISALA _ Operation HELP Use the command HELP to list the commands. Example: >hetp

Resetting Transmitter Using Serial Line RESET This command resets the device. The user port switches to start-up output mode selected with command SMODE.

User's Guide Locking Menu/Keypad by Using Serial Line LOCK Use the LOCK command to prevent the user from entering the menu using the keypad, or to lock the keypad completely. Y ou can optionally set a 4-digit PIN code, for example 4444. If a PIN code has been set, the user will be prompted to enter the code when trying to access the menu. Entering the code correctly will disable the lock until the user returns back to the basic view. LOCK [x] [yyyy] where x = Keypad locking level, range 0.2. The options are:

0 - No lock (enables full access)

1- Menu locked, but graphs are accessible

2 - Keypad completely disabled

yyyy = 4-digit PIN code. The code can only be set when keypad locking level is 1. Examples: >lock 1 4444 Keyboard lock : 1 [4444]

Data Recording Data recording function is always on and collects data automatically into the memory of the device. If the optional data logger module is installed, the transmitter uses it automatically. Recorded data does not disappear from the memory when the power is switched off. Collected data can be observed in a form of a graph in the graphical view of the display or it can be listed out by using the serial line or MI70 Link program. M210566EN-H

VAISALA Operation Selecting Data Recording Quantities If the device is provided with the optional display, the recorded quantities are always those selected for the display. Up to three quantities can be recorded at a time. For instructions on how to select the display quantities with the keypad, see section Changing Quantities and Units on page 92. DSEL Use the serial line command DSEL to select the quantities to be recorded if the transmitter is not equipped with display/keypad. DSEL [xxx] where xxx = Data recording quantity. See Table 3 on page 19 and Table 4 on page 19 for the quantities. Example: >dsetl rh t tdf RH T Tdf

Enter the command without parameters and press ENTER to display the current recording parameters. View Recorded Data If the device is provided with the optional display, the graphical display shows the data of the selected quantities, one at a time. See section Graphic History on page 66 for details about graphical display. Y ou may also dump the logged data to the serial line in numeric form with the following commands. DIR Use the serial line and enter the DIR command to check the available files. Without the data logger module, the device records six files (six observation periods) for each selected quantity. The data logger raises the number of recorded files to seven for each quantity. Thus, the total amount of the files varies between 6 and 21. See Table 11 on page 67. Select, for example, three quantities (RH, T, and Tdf). The last column illustrates the number of data points that has been stored in the file.

User's Guide 106 _ >dir File description © © OUI B W N Hi

1+++---222222 TILILILTI Example (data logger module installed): (19 s intervals) (90 s intervals) (12 min intervals) (2 h intervals) (12 h intervals) (3 d intervals) (12 d intervals) (19 s intervals) (90 s intervals) (12 min intervals) (2 h intervals) (12 h intervals) (3 d intervals) (12 d intervals) (19 s intervals) (90 s intervals) (12 min intervals) (2 h intervals) (12 h intervals) (3 d intervals) (12 d intervals) Oldest data available 2007-05-30 08:26:50 2007-05-30 05: 2007-05-29 05: 2007-05-19 02: 2007-03-23 12: 2006-04-20 00: 2002-12-16 00: 2007-05-30 08: 2007-05-30 05: 2007-05-29 05: 2007-05-19 02: 2007-03-23 12: 2006-04-20 00: 2002-12-16 00: 2007-05-30 08: 2007-05-30 05: 2007-05-29 05: 2007-05-19 02: 2007-03-23 12: 2006-04-20 00:00: 2002-12-16 00:00: Example (without data logger module): File description

+++---22222 LIIIT (19 s intervals) (90 s intervals) (12 min intervals) (2 h intervals) (12 h intervals) (3 d intervals) (19 s intervals) (90 s intervals) (12 min intervals) (2 h intervals) (12 h intervals) (3 d intervals) (19 s intervals) (90 s intervals) (12 min intervals) (2 h intervals) (12 h intervals) (3 d intervals) Oldest data available 2008-04-11 2008-04-11 2008-04-10 2008-03-31 2008-02-04 2007-03-04 2008-04-11 2008-04-11 2008-04-10 2008-03-31 2008-02-04 2007-03-04 2008-04-11 2008-04-11 2008-04-10 2008-03-31 2008-02-04 2007-03-04 No. of points

Operation PLAY Use the PLAY command to output the selected file to the serial line. If the data logger module is installed, you can specify an interval to be outputted. Data in the output is TAB > delimited. This is compatible with most spreadsheet programs. Before giving the command, set the local date and time with TIME and DATE commands, if needed. PLAY [x] [start date start time end date end time] where x = Number of the data file that will be outputted, range 0...21. The numbers correspond to the output of the DIR command; refer to the example on page 105. Selecting number 0 will output all data files. start date =Starting date of the interval to be outputted. Must be given in the following format: yyyy-mm-dd start time =Starting time of the interval to be outputted. Must be given in the following format: hh:mm:ss end date =Ending date of the interval to be outputted. Must be given in the following format: yyyy-mm-dd end time =Ending time of the interval to be outputted. Must be given in the following format: hh:mm:ss Example: >play 3 2007-05-05 00:00:00 2007-05-06 00:00:00 RH (12 min intervals) 2007-05-05 00:00:00 121 Date Time trend min max Yyyy-mm-dd hh:mm:ss RH RH RH 2007-05-05 00:00:00 19.16 18.99 19.33 2007-05-05 00:12:00 19.30 19.09 19.55 2007-05-05 00:24:00 20.01 19.28 21.17 2007-05-05 00:36:00 21.21 20.98 21.44 2007-05-05 00:48:00 19.57 17.72 21.11 2007-05-05 01:00:00 19.09 18.62 19.84 The <ESC > key can be used to interrupt the output listing. NOTE Output of large amounts of recorded data can result in huge data files and take a long time, up to several days for the entire memory of the data logger at 10 second resolution. To make it easier to process the data itis recommended to select the largest suitable data interval, and to specify the start and end times carefully. VAISALA 107

User's Guide Deleting the Recorded Files Y ou can delete the recorded data files using the keypad/display, or the DELETE command on the serial line. The deletion is always done for all data; you cannot delete individual files. Note that the transmitter automatically overwrites the old data when the memory is full, so manual deletion of the recorded files is not necessary in normal use. To delete the data files using the keypad/display:

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select System by pressing the arrow button.

3. Select Clear graph memories by pressing the CLEAR button.

Press the YES button to confirm the selection. CAUTION This function clears the entire data history of the transmitter, including all graphs and the content of the optional data logger module. UNDELETE Similany to the DELETE command, the UNDELETE command is used without any arguments. It will recover all deleted data that has not been overwritten yet. Analog Output Settings The analog outputs are set in the factory according to the order form. In case you want to change the settings, follow these instructions. See section Third Analog Output on page 53. Changing Output Mode and Range Both output channels have their own DIP switch module with 8 switches; see the position in Figure 2 on page 22 (DIP switches for analog output settings).

1. Select the current/voltage output; switch ON either of the switches,

2. Select the range; switch ON one of the switches from 3 to 7.

0503-045 Figure 60 Current/Voltage Switches of Output Modules The following numbers refer to Figure 60 above: 1 = Current/voltage selection output switches (from 1 to 2) 2 = Current/voltage range selection switches (from 3 to 7) in analog output 1 and 2. 3 = Switches for service use only. Keep in OFF position always. NOTE Only one of the switches 1 or 2 must be ON at a time. Only one of the switches 3 to 7 must be ON at a time. VAISALA 109

User's Guide Example: 0 … 5 V voltage output selected for channel 1 and 4 … selected for channel 2. OFF_ ON N ||

Current output selected 4... 20 mA selected NOTE If you have customized the error output setting (AERR), check that the set error values are still valid after changing the output mode/range, see section Analog Output Fault Indication Setting on page 113. Analog Output Quantities Use the display/keypad to change and scale the analog output quantities.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select Interfaces by pressing the arrow button.

3. Select Analog outputs by pressing the arrow button.

4. Select Output 1/2/3 by pressing the arrow button.

5. Select Quantity by pressing the À Y arrow buttons. Confirm your

selection by pressing CHANGE.

6. Selectthe quantity by using the arrow buttons. Press SELECT to

confirm your selection.

7. Select Scale, lower limit, by pressing the A V arrow buttons. Press

SET to confirm your selection. Press OK to confirm your setting. 110 M210566EN-H

8. Select the upper limit by pressing the A Y arrow buttons. Use the

arrow buttons to set the upper limit value. Press SET to confirm your selection. Press OK to confirm your setting.

9. Press EXIT to retum to the basic display.

AMODE/ASEL Use the serial line to select and scale the analog output quantities. Connect the transmitter to the PC. Open the terminal connection between your PC and the transmitter.

1. Check the analog output modes with the AMODE command.

2. Select and scale the quantities for the analog outputs with the

command ASEL. Note that the optional quantities can be selected only if they have been selected when ordering the device. ASEL [xxx yyy ZZz] where xxx = Quantity of channel 1 yyy = Quantity of channel 2 zzz = Quantity of the optional analog output channel 3 Enter always all the quantities for all outputs. For quantities and their abbreviations see Table 3 on page 19 and Table 4 on page 19. Use the command ASEL [xxx yyy] as shown in the example below when using a device with two analog outputs. Example: >asel rh t Ch1 (RH ) Low : 0.00 %RH ? 0 Ch1 (RH ) high : 100.00 %RH ? 100 Ch2 (T }) Low : -40.00 'C ? -50 Ch2 (T ) high : 60.00 'C ? 80

User's Guide Analog Output Tests Use the display/keypad for testing to test the operation of the analog by forcing the outputs to known values. Measure then the outputs with a current/voltage meter. Press any of the arrow buttons to open the MAIN MENU. Select System by pressing the arrow button. Select Diagnostics by pressing the arrow button. Select Analog output tests by pressing the à arrow button. Select one of the testing options Force 0% /50% /100% of scale. Press TEST to confirm your selection. All outputs are tested simultaneously. The actual output value depends on the selected range.

6. Press OK to stop testing. Press EXIT to return to the basic display.

Operation Analog Output Fault Indication Setting Factory default state for analog outputs during error condition is 0 V/ 0 mA. Please be careful when selecting the new error value. The error state of the transmitter should not cause unexpected problems in process monitoring. Use the display/keypad to set the analog output fault indication. Press any of the arrow buttons to open the MAIN MENU. Select Interfaces by pressing the arrow button. Select Analog Outputs by pressing the arrow button. Select Output 1/2/3 by pressing the > arrow button. Select Fault indication. Press SET to confirm your selection. Enter the fault indication value by using the arrow buttons. Press OK to confirm your setting. This value is outputted if a transmitter error OCCUIS.

6. Press EXIT to retum to the basic display.

TrwREe AERR Use the serial line AERR command to change the error output. AERR Example: >aerr Ch1 error out : 0.000V ? 5.0 Ch2 error out O.000V ? 5.0

NOTE The error output value must be within a valid range of the output mode. NOTE The error output value is displayed only when there are minor electrical faults such as humidity sensor damage. When there is a severe device malfunction, the error output value is not necessarily shown. VAISALA

User's Guide Operation of Relays Quantity for Relay Output A relay monitors the quantity chosen for the relay output. Any of the quantities available can be chosen. Measurement-Based Relay Output Modes Relay Setpoints When the measured value is in between the "above" and "below" values, the relay is passive. When choosing lower value as "above" value and higher value as "below" value, the relay is passive when the measured value is not between the setpoints. Y ou can also set only one setpoint. See Figure 61 below for illustrative examples of the different measurement-based relay output modes. Mode 1: Only "above" Mode 2: Only "below" Legend setpolnt set setpolnt set A "Active above" setpoint value measured measured B "Active below" setpoint value value value . h Hysteresis value K Relay is active (NO - C connected) + Relayis released o Relayis activated time time Relay is active when value is Relay is active when value is above the setpoint. below the setpoint. Mode 3: Both setpoints Mode 4: Both setpoints set, "above" > "below" set, "above" < "below" measured measured value value time time Relay is active when value is Relay is released when value is outside the setpoints. outside the setpoints. 0610-076 Figure 61 Measurement-Based Relay Output Modes 114 _ M210566EN-H

Operation Mode 4 is usually used if an alarm needs to be triggered when the measured value exceeds a safe range. The relay is active when measurement is in range, and is released if the value goes out of range or the measurement fails. NOTE its power, the relay is released. If the measurement of the selected quantity fails or the transmitter loses Hysteresis Hysteresis function is to prevent the relay switching back and forth when the measured value is near to the setpoint values. Relay is activated when the measured value passes the exact value of the setpoint. When returning and passing the setpoint again relay is not released before the value reaches the setpoint increased/decreased by the hysteresis value. Hysteresis should be smaller than difference of the setpoints. Example: When the ‘active above’ value is 60 %RH and the hysteresis value is 5 RH, relay activates when the relative humidity reaches 60 RH. As the humidity decreases, relay releases at 55 %RH. NOTE If both setpoints are specified and "above" setpoint is lower than "below" setpoint, the hysteresis works in the opposite direction, that is, relay is released when the measured value passes the exact value of the setpoint. VAISALA Relay Indicating Trans mitter Error Status Y ou can set a relay to follow the operation status of the device. By selecting FAULT/ONLINE STATUS for output quantity a relay changes state on the basis of the operation status as follows: FAULT STATUS Normal operation: relay active (C and NO outputs are closed) Not measuring state (error state or power off): relay released (C and NC outputs are closed) ONLINE STATUS Live measurement (data available): relay active (C and NO outputs are closed)

User's Guide No live data (for example: error state, chemical purge or adjustment mode): relay released (C and NC outputs are closed) See Figure 62 below for illustrative examples of the FAULT/ONLINE STATUSrelay output modes. Analog output vs. "FAULT STATUS" relay Legend AERR Analog output "fault indication" value set by user ” Outputs frozen because of e.g. Purge or Autocal À Measurement failure because of e.g. damaged sensor True value of the measurement parameter during the exceptional situation NŸ Relay active (NO - € connected) Relay is released in case of a measurement failure only. . Relay is activated o Relay is released Analog output vs. "ONLINE STATUS" relay time Relay is released when the output values are frozen, the adjustment mode is activated, or an instrument failure is detected

Figure 62 FAULT/ONLINE STATUS Relay Output Modes FAULT/ONLINE STATUS relays are usually used in conjunction with an analog output to obtain validity information for the output value. NOTE If transmitter loses its power, all status-based relays are released similarly to the case of an instrument failure. Enabling/Disabling Relays Y ou can deactivate the relay outputs for example for service purposes of your system. M210566EN-H

Operation Setting Relay Outputs NOTE When having only one relay module installed, its relays are called ‘relay l'and 'relay 2’. When having two relay modules, the relays of the module connected to slot MODULE 1 are called 'relay 1'and relay 2' and relays connected to slot MODULE 2 are called 'relay 3' and 'relay 4 VAISALA 0706-003 Figure 63 Relay Indicators on Display The following number refers to Figure 63 above: 1 = Lists enabled relays. Activation state shown in black. Disabled relays are not shown. Use the display/keypad to set the relay outputs.

1. Press any of the arrow buttons to open the MAIN MENU.

Select Interfaces, confirm by pressing the arrow button. Select Relay outputs, confirm by pressing the arrow button. Select Relay 1/2/3/4, confirm by pressing the arrow button. Select the Quantity, confirm by pressing Change. Select the Quantity by using the arrow buttons. Confirm your selection by pressing Select.

6. Select Act. above / Act. below. Press SET to confirm your

selection. (If asked, select MODIFY if you want to set the setpoint by using the arrow buttons. Select REMOVE if you want to remove the setpoint.)

7. Select Hysteresis by using the arrow buttons. Press SET to set the

Use the serial line to select the quantity, setpoints and hysteresis or enable/disable the relay outputs. Enter the RSEL command. RSEL [q1 q2 q3 q4] quantity for the relay 1 or Fault/Online quantity for the relay 2 or Fault/Online quantity for the relay 3 or Fault/Online quantity for the relay 4 or Fault/Online Factory setting: all relays disabled. Use the quantity abbreviations presented above. See Table 3 on page 19 and Table 4 on page 19. Example of window limit switch: Selecting relay 1 to follow dewpoint/frost point temperature measurement and relay 2 to follow temperature measurement. Two relay setpoints are set for both relays. >rsel rh t Rell RH above: Rell RH below: Rell RH hyst : Rell RH enabl: Rel2 T above: Rel2 T below: Rel2 T hyst : Rel2 T enabl:

OFF ? ON Example of normal limit switch: Selecting relay 1 to follow relative humidity, relay 2 to follow temperature, relay 3 to follow dewpoint and relay 4 to follow dewpoint. One setpoint is chosen for all the outputs. >rsel rh t td td above: below: hyst : enabl: above: below: hyst : enabl: above: below: hyst : enabl: above: below: hyst : enabl: Rell Rell Rell Rell Rel2 Rel2 Rel2 Rel2 Rel3 Rel3 Rel3 Rel3 Rel4 Rel4 Rel4 Rel4

Testing Operation of Relays Testing activates relays even if they are disabled. Use the module push buttons to activate the relays. Press the REL 1 or REL 2 button to activate the corresponding relay. Relay is activated: led is lit Relay is not activated: led is not lit Use the display/keypad to test the operation of relays. Open the MAIN MENU by pressing any of the arrow buttons. Select System, press the arrow button. Select Diagnostics, press the arrow button. Select Relay tests, press the arrow button. Select Invert relay 1... , press TEST. Now the selected relay output is forced to opposite state. Press OK to return to normal operation.

6. Press EXIT to retum to the basic display.

TrwREe RTEST Use the serial line command RTEST to test the operation of the relays. RTEST [x1 x2 x3 x4] where x = ON/OFF

User's Guide Example: A ctivate and then release all four relays. >rtest on on on on ON ON ON ON

>rtest off off off off

Enter the command RTEST without parameters to stop testing. Operation of the RS-485 Module The RS-485 interface enables communication between RS-485 network and HMT330 transmitter. The RS-485 interface is isolated and offers a maximum communications rate of 115 200 bits/s. (For maximum bus length of 1 km, use bit rate 19200 b/s or less.) When selecting an RS-232-RS-485 converter for the network, avoid self powered converters as they don't necessarily support the needed power consumption. Echo function shall be always disabled (OFF) when using the 2-wire connection. When using the 4-wire connection you can disable/enable the echo setting. NOTE User port on HMT330 main board cannot be used and connected when RS-485 module is connected. Service port is operating normally. Networking Commands Set the RS-422/485 interface by using the following commands. The other serial line commandés are presented in section List of Serial Commands on page 87. RS-485 configuration commands SERI; ECHO; SMODE; INTV and ADDR may be entered by using either the service port or RS-422/485 port. Also the optional display/keypad can be used, see section User Port Serial Settings on page 98. SDELAY With the SDELAY command you can set delay (response time) for user port (RS232 or RS485), or view currently set delay value. Value corresponds to tens of milliseconds (eg. 5 =0.050s minimum answer delay). The value can be set between 0...254. M210566EN-H

bit rate (300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200) p = party (n=none, e =even, o =odd) d = databits(7or8) s = stop bits (1 or2) ECHO Use the ECHO command to enable/disable echo of characters received over the serial line. ECHO [x] where x = ON/OFF (default =OFF) When using 2-wire connection, echo must be always disabled. SMODE Use the SMODE command to set the default serial interface mode. SMODE [xxxx] where xxxx = STOP, RUN or POLL In STOP mode: measurements output only by command SEND, all commands can be used In RUN mode: outputting automatically, only command S can be used to stop. In POLL mode: measurements output only with command SEND [addr].

User's Guide When several transmitters are connected to the same line, each transmitter must be entered an own address in the initial configuration, and POLL mode must be used. INTV Use the INTV command to set the RUN mode output interval. INTV [n xxx] where n = 1-255 xxx= S,MINorH This command sets the RUN mode output interval. The time interval is used only when the RUN mode is active. For example, the output interval is set to 10 minutes. >INTV 10 min Output intrv. : 10 min

Setting RUN output interval to zero enables the fastest possible output rate. ADDR Addresses are required only for POLL mode (see serial line command SMODE on page 99). Use the ADDR command to input the RS-485 transmitter address. OPEN [aa] where aa = address (0. 99) (default =0) Example: the transmitter is configured to address 99. >ADDR Address : 2? 99

VAISALA Operation SEND Use the SEND command to output the reading once in POLL mode: SEND [aa] where aa = address of the transmitter OPEN When all transmitters on the RS-485 bus are in POLL mode the OPEN command sets one transmitter temporarily to STOP mode so that other commands can be entered. OPEN [aa] where aa = address of the transmitter (0 … 99) CLOSE The CLOSE command switches the transmitter back to the POLL mode. Example: >OPEN 2 (opens the line to transmitter 2, other transmitters stay in POLL mode) >CRH (for example, calibration performed) >CLOSE (Line closed)

User's Guide Sensor Functions Chemical Purge (Optional) In some specific applications the sensor gain may decrease gradually due to an interference caused by a particular chemical present in the measured gas, for example. The decrease of sensor gain due to an interfering chemical and the effect of the chemical purge process are illustrated below, see Figure 64 below. The sensor polymer absorbs the interfering chemical; and this reduces the ability of the polymer to absorb water molecules and consequently the sensor gain decreases. In chemical purge, heating the humidity sensor to a temperature level of approximately +160 °C for several minutes evaporates the interfering chemical. The purge function starts with heating stage, continues with settling and when the temperature of the sensor is decreased the transmitter returns to normal mode. The whole cycle takes about 6 minutes. NOTE Chemical purge function locks the output values for about 6 minutes. Calibration values Measured values _ after chemical exposure Output signal Humidity 0508-035 Figure 64 Decrease of Sensor Gain M210566EN-H

VAISALA Operation Before starting the chemical purge note the following: The sensor is protected with a PPS grid with stainless steel netting, a stainless steel sintered filter or with membrane SST filter. The sensor temperature must be below 100 °C. At higher temperatures the chemicals evaporate spontaneously from the sensor and the chemical purge is not necessary. Automatic Chemical Purge (Interval Purge) When HMT330 leaves the factory the automatic chemical purge (if chosen) takes place repeatedly with the time intervals set in the factory. User can change the interval in which the purge takes place by using serial commands or with the optional display/keypad. This can be needed if the measuring environment contains high concentrations of interfering chemicals. The automatic chemical purge can also be tumed off if necessary. Manual Chemical Purge The chemical purge should be performed always before calibration (see section Calibration and A djustment on page 137) or when there is a reason to believe that a sensor has become exposed to an interfering chemical. Make sure that the temperature of the sensor has come down to normal temperature before starting a calibration. Chemical Purge in Power Up Chemical purge (start-up purge) can be set to start within 10 seconds from the power-up of the device.

User's Guide Starting and Configuring Chemical Purge Using Buttons on Motherboard Start manual chemical purge by pressing simultaneously two PURGE buttons on the motherboard inside the transmitter for a few seconds. Indicator led flashes until purge is complete (up to 6 minutes). 0508-011 Figure 65 Purge Buttons on Motherboard Using Display/Keypad (Optional) Set the automatic and manual chemical purge by using the display/keypad.

Open the MAIN MENU by pressing any of the Y À 4 arrow buttons. Select Measuring, press b button. Select > Chemical purge, press button. W Automatic purge Interval: 10 h £3 Start-u ur ge Ptanual purge START EXIT CHEMICAL PURGE 0706-06 Figure 66 Chemical Purge Settings Tum on/off the automatic purge by selecting Automatic purge, press > ON/OFF button. Set the automatic purge interval by selecting Interval: …, press SET. Set the purge interval and the unit (hour/day) by using the arrow buttons. The interval must be 1 hour … 10 days. Press OK. Select Start-up purge by using the arrow buttons. Press On/Off to turn the start-up purge on/off. Start manual purge by selecting Manual purge and pressing START. M210566EN-H

4. Press EXIT to retum to the basic display.

Chemical purge in progress... F CANCEL 0706-04 Figure 67 Performing Chemical Purge Using Serial Line PURGE Operation Enter the PURGE command to start chemical purge immediately. >purge Purge started, press any key to abort.

The prompt ‘> appears when the heating period is over. However, the transmitter outputs are locked to the values measured before performing chemical purge until the settling time is over. With PUR command you can enable or disable automatic and power-up chemical purge and set the interval for automatic purge. If the sensor is exposed to chemicals it is recommended to have the chemical purge done at least once in 720 min (=12 hours). In applications where the chemical exposure is not likely, the interval can be longer. Itis not recommended to change duration, settling, temperature or temperature difference. PUR Type PUR and press ENTER to proceed. The maximum interval is 14400 minutes (=10 days). Example: >pur Interval Purge : OFF ? Interval : 720 min ? Power-up Purge : OFF ? Duration : 120 s ? Settling : 2480 s ? Temperature : 160 'C ? Temp. diff. : 0.5 'C?

User's Guide NOTE To activate the new interval settings immediately, reset the transmitter. NOTE When chemical purge in power-up is enabled, wait about 6 min after power-up before taking measurements. The output channels are locked for the first operation minutes to the initial measured values Sensor Heating This function is optionally available only in transmitters with HUMICA P®180C or HUMICA P®180RC sensor. It should be used only with the warmed probe. The sensor heating is recommended for the high humidity environments where even a small temperature differences can cause water to condense on the sensor. The sensor heating speeds up the recovery of the humidity sensor from condensation. Sensor heating starts-up when the relative humidity of the measuring environment reaches the RH-value set by a user (RH-limit). The user can define the RH-sensor heating temperature as well as the duration of the heating. After the heating cycle the humidity conditions are checked and new sensor heating is performed if the predefined conditions are reached again. NOTE During the sensor heating the outputs are locked to the values measured before the heating cycle. Setting Humidity Sensor Heating When the HMT330 leaves the factory the sensor heating follows the factory default values. Y ou can enable/disable the function, change the RH-limit and define the heating temperature and duration of this function. XHEAT Enables/disables the sensor heating. XHEAT [x] where: xx = ON/OFF M210566EN-H

Chapter 4 2 Operation

Chapter 5 Maintenance

MAINTENANCE This chapter contains information that is needed in basic maintenance of the product. Periodic Maintenance Cleaning Clean the transmitter enclosure with a soft, lint-free cloth moistened with mild detergent. Changing the Probe Filter Tum the filter counter-clockwise to loosen it.

2. Remove the filter from the probe. Be careful not to touch the sensor

with the filter. Without the filter in place, the sensor is easily damaged - handle the probe carefully.

3. Install a new filter on the probe. When using the stainless steel

filter (for fuel cell applications), take care to tighten the filter propery (recommended force 5 Nm). New filters can be ordered from V aisala, see section Options and Accessories on page 155. VAISALA 131

User's Guide Changing the Sensor The user can change the HUMICAP180 and HUMICA P180R sensors. If the transmitter has the chemical purge and/or warmed probe option (which utilize the HUMICAP180C or HUMICAP180RC sensor), the sensor cannot be changed by the user. Changing the sensor should be considered corrective maintenance, and it is not necessary in normal operation. If the accuracy of the transmitter does not seem to be within specification, it is more likely that the transmitter is in need of calibration and adjustment, and not sensor replacement. Refer to chapter Calibration and A djustment on page 137. NOTE When replacing the sensor, the new sensor must be of the same type as the old sensor (for example, HUMICAP180R). The sensor type can only be changed at a Vaisala Service Center.

1. Remove the filter from the probe. See the instructions in section

Changing the Probe Filter on page 131.

2. Remove the damaged sensor and insert a new one. Handle the new

sensor by the plastic socket. DO NOT TOUCH THE SENSOR PLATE.

3. Perform a calibration and adjustment as instructed in section

Relative Humidity A djustment after Sensor Change on page 142.

4. Attach a new filter on the probe. When using the stainless steel

filter, take care to tighten the filter properly (recommended force 5 Nn).

DS0e-07 Figure 68 Changing the Sensor The following numbers refer to Figure 68 above: 1 = Pulloutthe sensor 2 = Plastic socket 132 M210566EN-H

Chapter 5 Maintenance

Error States In error state the quantity is not measured and the output is shown as follows: -_ Analog channel outputs 0 mA or 0 V (you can use the serial line command AERR or display/keypad to change this fault indication value, see section Analog Output Fault Indication Setting on page 113.) The serial port outputs stars (***) The cover LED is blinking Optional display: error indicator is lit. & ERROR (past, unacknowledged) Humidity sensor measurement malfunction. (0) [Bi :: UE 0706-08 Figure 69 Error Indicator and Error Message The following number refers to Figure 69 above: 1 = Errorindicator The error indicator disappears when the error state is over and you have checked the error message. Press the INFO button to display the error message. Y ou can also check the error message via the serial interface by using the command ERRS. In case of constant error, please contact Vaisala, see Vaisala Service Centers on page 136. VAISALA 133

User's Guide __ Table 29 Error Messages Error Code | Error Message Action 0 Humidity sensor Check the integrity of the humidity probe and measurement malfunction. |the probe cable. Clean the probe from dirt, water, ice or other contaminants. 1 Humidity sensor short circuit] Check the integrity of the humidity probe and the probe cable. Clean the probe from dirt, water, ice or other contaminants. 2 Humidity sensor open circuit] Check the integrity of the humidity probe and the probe cable. 3 Temperature sensor open |Check the integrity of the humidity probe and circuit. the probe cable. 4 Temperature sensor short |Check the integrity of the humidity probe and circuit. the probe cable. Clean the probe from dirt water, ice or other contaminants. 5 Temperature measurement | Check the integrity of the humidity probe and malfunction the probe cable. Clean the probe from dirt water, ice or other contaminants. 6 Temperature sensor current | Check the integrity of the humidity probe and leak. the probe cables. Clean the probes from dirt, water, ice or other contaminants. 7 Internal ADC read error Internal transmitter failure. Remove the transmitter and return the faulty unit to Vaisala Service. 8 Additional temperature Check the integrity of the temperature probe sensor short circuit and the probe cable. Clean the probe cable from dirt, water, ice or other contaminants. 9 Checksum error in the Internal transmitter failure. Remove the internal configuration transmitter and return the faulty unit to Vaisala memory Service. 10 Internal EEPROM read Internal transmitter failure. Remove the error transmitter and return the faulty unit to Vaisala Service. 11 Internal EEPROM write Internal transmitter failure. Remove the error transmitter and return the faulty unit to Vaisala Service.

12. 13 Add-on module 1 (or 2) Turn off the power and check the module

connection failure connection. Turn on the power. 14 Device internal temperature | Ensure that the operating temperature is within out of range the valid range. 15 Operating voltage out of Ensure that the operating voltage is within the range valid range. 18 Internal ADC reference Internal transmitter failure. Remove the voltage out of range transmitter and return the faulty unit to Vaisala Service. 19 Internal analog output Internal transmitter failure. Remove the reference voltage out of transmitter and return the faulty unit to Vaisala range Service.

20. 23 Configuration switches for |Check and re-setthe switches, see page 54.

Chapter 5 Maintenance

Error Code | Error Message Action 28 … 29 Unknown/incompatible Ensure that the module is compatible with the module installed in add-on |HMT330. module slot 1 (or 2) 30 Internal analog voltage out | Internal transmitter failure. Remove the of range transmitter and return the faulty unit to Vaisala Service. 31 Internal system voltage out | Internal transmitter failure. Remove the of range transmitter and return the faulty unit to Vaisala Service. Technical Support For technical questions, contact the V aisala technical support: E-mail helpdesk@ vaisala.com Fax +358 9 8949 2790 Return Instructions If the product needs repair, please follow the instructions below to speed up the process and to avoid extra costs to you. Read the section Warranty on page 18.

2. Contact a Vaisala Service Center or a local Vaisala representative.

The latest contact information and instructions are available from www.vaisala.com. A ddresses of the Service Centers are provided in section V'aisala Service Centers on page 136. Please have the following information on hand: - serial number of the unit -_ date and place of purchase or last calibration -_ description of the fault -_ circumstances in which the fault occurs/occurred -_ name and contact information of a technically competent person who can provide further information on the problem

3. Pack the faulty product in a strong box of adequate size, with

proper cushioning material to avoid damage.

4. Include the information specified in step 2 in the box with the

faulty product. Also include a detailed return address.

5. Ship the box to the address specified by your V'aisala contact.

User's Guide Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services. See contact information below. Vaisala Service Centers also offer accredited calibrations, maintenance contracts, and a calibration reminder program. Do not hesitate to contact them to get further information. European Service Center (Finland) Controlled Environments and Instruments Vanha Nurmijärventie 21, 01670 Vantaa, FINLAND. Phone: +358 9 8949 2658, Fax: +358 9 8949 2295 North American Service Center Controlled Environments and Instruments 10-D Gill Street, Woburn, MA 01801, USA. Phone: 800-408-9456, Fax: +1 781 933 8029 Japan Service Center 42 Kagurazaka 6-Chome, Shinjuku-ku, Tokyo 162-0825, JAPAN. Phone: +81 3 3266 9611, Fax: +81 3 3266 9610 China Service Center Floor 2, EAS Building, No. 21, Xiao Yun Road, Dongsanhuan Beilu, Chaoyang District, Beijing 100027, CHINA. Phone: +86 10 8526 1199, Fax: +86 10 8526 1155 Wwww.vaisala.com 136 M210566EN-H

Chapter 6 Calibration and Adjustment

CALIBRATION AND ADJ USTMENT

The HMT330 is fully calibrated and adjusted as shipped from factory. Typical calibration interval is one year. Depending on the application it may be good to make more frequent checks. Calibration must be done always when there is a reason to believe that the device is not within the accuracy specifications. Itis recommended that calibration and adjustment should be carried out by V'aisala. See section Vaisala Service Centers on page 136. Calibration and adjustment is carried out either by using the push-keys on the motherboard, through the serial port or with the optional display/keypad. (V'aisala portable instruments HM70 and HMI41 can also be used). Opening and Closing the Adjustment Mode

1. Open the transmitter cover. The buttons needed in adjustment are

on the left-hand side of the motherboard.

2. Ifthe chemical purge option is available, it should be carried out

always before calibration. To start chemical purge press simultaneously two PURGE push-keys (on the motherboard) for a few seconds. Red indicator led flashes with short pulses until purge is complete (up to 6 minutes).

3. Press the ADJ key to open the adjustment mode.

Press the ADJ key again to close the adjustment mode. VAISALA 137

User's Guide 0508-013 Figure 70 Adjustment and Purge Buttons The following numbers refer to Figure 70 above: 1 = Indicatorled 2 = Adjustment button 3 = Press the purge buttons simultaneously to start chemical purge (if available) Adjustment menu is displayed only when ADJ button (on the motherboard inside the transmitter) is pressed. ADJUSTMENT MENU 4° (ArAdiust RH measurement © pAdjust T measurement @ bAdjust analog outputs ä pAdijustment info EXIT 0706-07 Figure 71 Adjustment Menu Table 30 Indicator Led Functions Indicator Led Function Description LED off adjustment locked LED on adjustment available LED blinking evenly measurement not stabilized LED blinking with short pulses | performing chemical purge NOTE If using a warmed probe (HMT337 option), probe heating will be interrupted when ADJ key is pressed. Allow sufficient time for the probe to reach ambient temperature before starting the adjustment procedure. NOTE Fixed pressure compensation value of 1013.25 hPa is used when in adjustment mode 138 M210566EN-H

Calibration and Adjustment Relative Humidity Adjustment Using Push-Buttons A simple push-button adjustment is carried out by using two relative humidity references: 11 % RH (LiCl) and 75 % RH (NaCI).

Press the ADJ button (see Figure 70 on page 138) on the motherboard to open the adjustment mode. The indicator led starts flashing. Remove the filter from the probe and insert the probe into a measurement hole of the 11 % RH (LiCl) in the humidity calibrator HMK15. Use the adapter fitting for the probes of HMT334, HMT335, HMT337 and HMT338. Wait at least 30 minutes for the sensor to stabilize (the indicator led is lit continuously). A djustment cannot be done if the conditions are not stabilized (indicator led is flashing). When the indicator led is lit continuously, press the button LicI-11% to adjust the 11 % RH condition. A fter adjustment transmitter returns to normal operation mode (indicator LED is unlit). NaCI reference

VAISALA When adjusting in the second reference 75 % RH, press the ADJ button to open the adjustment mode. The indicator led starts flashing. Insert the probe into a measurement hole of the 75 % RH (NaCI) reference chamber of the humidity calibrator HMK15. Use the adapter fitting for the probes of HMT334, HMT335, HMT337 and HMT338. Wait at least 30 minutes for the sensor to stabilize (the indicator led is lit continuously). A djustment cannot be done if the conditions are not stabilized (indicator led is flashing). Press the button NaC1 75 % to adjust the 75 % RH condition. After adjustment transmitter returns to normal operation mode (indicator led is unlit).

User's Guide Using Display/Keypad Note that the difference between the two humidity references must be at least 50% RH. nue Cany out the chemical purge (if available). Press the ADJ button (opens the ADJUSTMENT MENU). Select A djust RH measurement, press button. Select 1-point/ 2-point adjustment, press. Press START. Select the reference as guided by the display, press SELECT.

Remove the filter from the probe and insert the probe into a measurement hole of the dry end reference chamber (for example, LiCI: 11 % RH in the humidity calibrator HMK15.) Use the adapter fitting for the probes of HMT334, HMT335, HMT337 and HMT338. Wait at least 30 minutes for the sensor to stabilize. Follow the stabilization from the GRAPH display. Press READY when stabilized. If you have chosen the Other reference value, enter now the reference value by using the arrow buttons. When carrying out the 2-point adjustment proceed to the next adjustment point and carry out the procedure as described in the previous items. Answer YES to confirm the adjustment. Press OK to return to the adjustment menu.

10. Press EXIT to close the adjustment mode and retumn to the basic

display. Before closing the adjustment mode, feed the adjustment information into the device, see section Feeding A djustment Information on page 146. M210566EN-H

VAISALA Calibration and Adjustment Using Serial Line Note that the difference between the two humidity references must be at least 50% RH.

Connect the HMT330 to a PC. See section Serial Line Communication on page 73. Open a terminal program. Carry out the chemical purge (if available). Press the ADJ button. Remove the filter from the probe and insert the probe into a measurement hole of the dry end reference chamber (for example, LiCI: 11 % RH in the humidity calibrator HMK 15). Use the adapter fitting for the probes of HMT334, HMT335, HMT337 and HMT338. Enter the CRH command and press ENTER. CRH

Wait at least 30 minutes for the sensor to stabilize. Type C and press ENTER a few times to check if the reading is stabilized. When the reading is stabilized, give the reference humidity after the question mark and press ENTER. RH: 11.25 Refl RH: 11.25 Refl RH: 11.25 Refl RH: 11.24 Refl ce RH: 11.24 Refl ? 11.3 Press any key when ready ... + 0 0 nnn Now the device is waiting for the high end reference. Insert the probe into the measurement hole of the high end reference chamber (for example, NaCL: 75 % RH chamber in the humidity calibrator HMK15). Use the adapter fitting for the HMT334, HMT335, HMT337 and HMT338 probes. Press any key when ready. Let the probe stabilize for about 30 minutes. Y ou can follow the stabilization by typing C and pressing ENTER. When stabilized, type the high end reference value after the question mark and press ENTER. >crh RH: 11.25 Refl ? c RH: 11.24 Refl ? c RH: 11.24 Refl ? 11.3

12. ok indicates that the adjustment has succeeded and the new

calibration coefficients are calculated and stored. Enter the adjustment information (date and text) to the memory of the transmitter: see the commands CTEXT and CDATE.

13. Press the ADJ button on the motherboard to close the adjustment

14. Take the probe out of the reference conditions and replace the

filter. Relative Humidity Adjustment after Sensor Change Using Display/Keypad When using the optional display/keypad, follow the instructions on Using Display/Keypad on page 140 but select Adj. for new RH sensor (instead of 1-point/ 2-point adjustment). Using Serial Line After sensor change, carry out the procedure as described in previous sections. Just replace the CRH command with the FCRH command. FCRH Example: >FCRH RH : 1.82 1. ref ? ()] Press any key when ready... RH : 74.22 2. ref ? 75

The ok indicates that the calibration has succeeded. 142 M210566EN-H

Calibration and Adjustment Temperature Adjustment VAISALA Using Display/Keypad

Press the ADJ button on the motherboard to open the ADJUSTMENT MENU. If using a warmed probe for measuring, probe heating will be interrupted when ADJ key is pressed. Wait some time for the probe to reach ambient temperature. Select > Adjust T measurement, press D key. Select 1-point/ 2-point adjustment, press. Press START. Remove the filter from the probe and insert the probe into the reference temperature. Wait at least 30 minutes for the sensor to stabilize. Follow the stabilization from the GRAPH display. Press READY when stabilized. Give the reference temperature by using the arrow buttons. When carrying out the 2-point adjustment proceed to the next adjustment point and carry out the procedure as described in the previous item. Please, note that the difference between the two temperature references must be at least 30 °C. Press OK. Press YES to confirm the adjustment. Press OK to return to the adjustment menu. Press EXIT to close the adjustment mode and return to the basic display. Using Serial Line

Press the ADJ key on the motherboard to open the adjustment mode. If using a warmed probe for measuring, probe heating will be interrupted when ADJ key is pressed. Wait some time for the probe to reach ambient temperature. Remove the probe filter and insert the probe into the reference temperature. Enter the command CT or (CTA for additional T probe) and press ENTER.

or for additional T probe: CTA

User's Guide Type C and press ENTER a few times to check if the reading is stabilized. Let the reading stabilize, give the reference temperature after the question mark and press ENTER three times. When using two reference temperatures (2-point calibration) press ENTER only twice and insert the probe to the second reference. When the reading is stabilized, give the second reference temperature after the question mark and press ENTER. Please, note that the difference between the two temperature references must be atleast 30°C. Example (1-point adjustment): >ct T 16.06 Refl ? c T 16.06 Refl ? c T_: 16.06 Refl ? c T_: 16.06 Refl ? c T_: 16.06 Refl ? c T : 16.06 Refl ? 16.0 Press any key when ready ... TT: 16.06 Ref2 ?

OK indicates that the calibration has succeeded. Enter the calibration information (date and text) to the transmitter's memory; see the serial commands CTEXT and CDATE. Press the ADJ button on the motherboard to close the adjustment mode. Take the probe out of the reference conditions and replace the filter. M210566EN-H

Calibration and Adjustment Analog Output Adjustment In the analog output calibration the analog output is forced to the following values: - Current output: 2 mA and 18 mA VAISALA - Voltage output: 10 % and 90 % of the range Connect HMT330 to a calibrated current/voltage meter in order to measure either current or voltage depending on the selected output type. Using Display/Keypad Press the ADJ button to open the ADJUSTMENT MENU. Select A djust analog outputs, press > button. Select the output to be adjusted A djust analog output 1/2, press START. Measure the first analog output value with a multimeter. Give the measured value by using the arrow buttons. Press OK. Measure the second analog output value with a multimeter. Give the measured value by using the arrow buttons. Press OK. Press OK to return to the adjustment menu. Press EXIT to close the adjustment mode and to return to the basic display. Using Serial Line Enter the ACAL command and type the multimeter reading for each case. Continue by pressing ENTER. ACAL Example (current outputs): >ACAL Ch1 Il (mA)? 2.046 Ch1 12 (mA)? 18.087 Ch2 Il (mA)? 2.036 Ch2 12 (mA)? 18.071

User's Guide Feeding Adjustment Information This information is shown on the device information fields (see section Device Information on page 101.) Using Display/Keypad

1. Ifyouare notin the adjustment menu, press the ADJ button on the

motherboard (opens the ADJUSTMENT MENU). Select A djustment info, press the » button. Select Date, press SET. Give the date by using the arrow buttons. Press OK.

4. Selecti, press SET. Enter information text including 17 characters

at maximum by using the arrow buttons. Press OK.

5. Press EXIT to retumn to the basic display.

Accuracy (including non-linearity, hysteresis and repeatability) with HUMICAP°180 HUMICAP°180R

HUMICAP°180RC at +15. 25 °C at-20 … +40 °C at-40 … +180 °C Factory calibration uncertainty (+20 °C) for typical applications for typical applications for applications with chemical purge and/or warmed probe for applications with chemical purge and/or warmed probe +1% RH (0. 90 % RH) +1.7 % RH (90 … 100 %RH) +(1.0 + 0.008 x reading) % RH +(1.5 +0.015 x reading) % RH

40.6 % RH (0. 40 % RH)

+1.0 % RH (40 … 97 % RH) (Defined as +2 standard deviation limits. Small variations possible, see also calibration certificate.) Response time (90 %) for HUMICA P°180 and HUMICA P°180C in still air 8 s with grid filter 20 s with grid + steel netting filter 40 s with sintered filter Response time (90 %) for HUMICA P°180R and HUMICA P°180RC at 20 °C in 0.1 m/s air flow 17 s with grid filter 50 s with grid + steel netting filter 60 s with sintered filter _ 147

Accuracy at +20 °C (+68 °F) +0.2 °C Accuracy over temperature range (see graph below): A°C

VAISALA _ Technical Data Dewpoint Temperature (HMT337 Warmed Probe Option) Find the intersection of the dewpoint temperature curve and the dewpoint difference reading (process temperature-dewpoint temperature) on the x- axis and read the accuracy in dewpoint measurement on the y-axis. Dewpoint temperature (°C) Accuracy in dewpoint measurement (°C) Dewpoint difference (°C) 0508-017 Figure 74 Accuracy in Dewpoint Measurement Operating Environment Operating temperature range for humidity measurement -70 … +180 °C (-94 … +356 °F) see probe specifications for transmitter body electronics -40 … +60 °C (40 . +140 °F) with display 0. +60 °C (+32. +140 °F) Storage temperature -55 … +80 °C (-67 .… +176 °F) Electromagnetic compatibility EN61326-1:1997+ Am1:1998 + Am2:2001 Industrial environment

Inputs and Outputs Operating voltage with optional power supply module Start-up time after power-up Power consumption @ 20 °C (Uin 24VDC) RS-232 Uout2 x 0... 1V /0..5V /0.. 10V Jout 2 x 0. 20 mA display and backlight during sensor purge Analog outputs (2 standard, 3rd optional) current output voltage output Accuracy of analog outputs at 20 °C Temperature dependence of the analog outputs External loads current outputs

0..1V,0..5V,0..10V +0.05 % full scale +0.005 %/°C full scale RL < 500 ohm RL >2 kohm RL >10 kohm

LCD with backlight, graphic trend display English, French, Spanish, German, Japanese, Russian, Swedish, Finnish, Chinese. M20x1.5 for cable diameter

1/2"NPT M12 series 8- pin (male) with plug (female) with 5 m/

with plug (female) with screw terminals

Relay Module Operating temperature range Operating pressure range Power consumption @ 24V Contacts SPDT (change over), for example, Contact arrangement Form C Imax Imax Safety standard for the relay component Storage temperature range 3-pole screw terminal / relay Max wire size RS-485 Module Operating temperature range Operating modes Operating speed max Bus isolation Power consumption @ 24V External loads standard loads Storage temperature range Max wire size LAN Interface Module Operating temperature range Storage temperature range Operating humidity range Power consumption @ 24V Ethernet type Connector Supported protocols WLAN Interface Module Operating temperature range Storage temperature range Operating humidity range Power consumption @ 24V Supported standards Connector Protocols Security -40 . +60 2C (-40 … +140 2F) 500 … 1300 mmHg max 30 mA

TRANSMITTER MOUNTING ACCESSORIES

Thread Wall Mounting Kit 214829 Probe Holder Plate 226252 Installation Kit for Pole or Pipeline 215108 Rain Shield with Installation Kit 215109 DIN Rail Clips with 215094 Installation Plate Meteorological Installation Kit HMT330MIK Panel Mounting Frame 216038

PROBE MOUNTING ACCESSORIES

User's Guide 183 (7.20) o ©] I®)

Chapter 7 Technical Data

Appendix A Probe Installation Kits and Installation Examples APPENDIX A

PROBE INSTALLATION KITS AND

INSTALLATION EXAMPLES Duct Installation Kits (for HMT333/337/335) Duct installation kit includes a flange, a sealing ring, a supporting bar, a probe attaching part, and screws for attaching the flange to the duct wall. Vaisala order codes: 210697 (for HMT333 and HMT337), 210696 (for HMT335, no supporting bar), and 215003 for temperature probe. ï 75 mm 50 mm

0508-021 Figure 85 Duct Mounting Installation Kit The following numbers refer to Figure 85: Duct wall Flange Sealing ring Supporting bar (not included in the kit for HMT335) Probe attaching part (to be fixed with the supporting bar) Relative humidity probe O 01 & ND = NOTE When the temperature difference between the duct and the air outside the duct is remarkable, the supporting bar must be installed as deep in the duct as possible. This prevents errors caused by the heat conduction in the bar and cable. VAISALA 163

User's Guide Duct Installation Kit for Temperature Probe (for HMT337) Vaisala duct installation kit for the T-probe includes flange, supporting bar, probe attaching part, sealing ring and the fixing screws (4 pcs). Vaisala order code: 215003. | 75 mm 1 50 mm 5 |] ? si I FE D [ + D — B 4,2 x16 DIN798+— 0 |] drilling 16...22 mm

0507-018 Figure 86 Duct Mounting Installation Kit for T-Probe The following numbers refer to Figure 86: Duct wall Flange Sealing ring Supporting bar Probe support (to be fixed to the supporting bar) Retainer bushing (to be fixed to the probe support) Temperature probe (to be fixed to the retainer bushing) JO 01 W Dm CS | 164 M210566EN-H

Appendix A Pressure Tight Swagelok Installation Kits (for HMT337) VAISALA Probe Installation Kits and Installation Examples RH Probe Installation Swagelok installation kit for the relative humidity probe includes Swagelok connector with IS03/8" or NPT1/2" thread. Vaisala order codes: SWG121S038 or SWG12NPT12. 80 mm 0508-032 Figure 87 Swagelok Installation Kit for RH-probe The following numbers refer to Figure 87: Relative humidity probe Duct connector IS03/8" or NPT1/2" thread Swagelok connector Ferrules 1H W D me WU UNUH Temperature Probe Installation Swagelok installation kit for T-probe includes Swagelok connector with either IS01/8" or NPT1/8" thread. V'aisala order codes: SWG61S018 or SWGGNPT18. 135 mm SSSR NS nn 8 mmmin

0508-01 Figure 88 Swagelok Installation Kit for T-Probe The following numbers refer to Figure 88: T-probe Duct connector Swagelok connector Ferrules

User's Guide Examples of Vapor Tight Installations with Cable Gland RH-Probe Installations (for HMT333/337) Cable gland A GRO is available from V aisala (order code: HMP247CG.) SSSR PPT LA Pr,

Figure 89 Cable Installation with Cable Gland The following numbers refer to Figure 89: 1 = Nut(to be tightened to the body) 2 = Seal 3 = Body and O-ring 0508-018 Figure 90 Probe Installation with Cable Gland Probe installation with cable gland is not available from V aisala. The following numbers refer to Figure 90: 1 = AGRO 1160.20.145 (T=-40 … +100 °C) Not available from Vaisala. 2 = Inpressurized places, use a locking ring (for example: 11x 1 DIN471). M210566EN-H

VAISALA 0508-015 Figure91 Vapor Tight Installation Vapor Tight Installation is not available from V aisala. The following numbers refer to Figure 91: 1 = Cable gland. For example AGRO 1100.12.91.065 (T=-25 … +200 ©) 2 = In pressurized processes, use a locking ring (example: 6x 0.7 DIN471) 0508-022 Figure92 Wall Mounting Installation Wall Mounting Installation is not available from V aisala. The following numbers refer to Figure 92: Cable gland. For example AGRO 1100.12.91.065 Compacted PTFE sleeve Silicon glue between the PTFE sleeve and the cable Temperature probe Recommended support to keep the probe in horizontal position 1 & W ND = WUUNUH

User's Guide NN NKK 7 \ 4 7 El E+ 2 Z NS 2 | 7 2 is ER L | ae 4 1 Ÿ NÙ / 3 N KKKKK KKKKKK 0507-016 Figure93 Climate Chamber Installation (not Available from Vaisala) The following numbers refer to Figure 93: PTFE sleeve Cable gland, for example: AGRO 1100.12.91.065 Stainless steel cable tie or similar fastener To be sealed (silicone) Temperature probe Relative humidity probe HMP247CG, Cable gland AGRO (available from V aisala) NO 01H WN M

NOTE Let the cables hang loosely to prevent condensed water running to the probe. M210566EN-H

Appendix A Outdoor environment VAISALA Process: For example +85 €, 85 %RH 0507-015 Figure 94 Example of Installation through Roof The following numbers refer to Figure 94: © 1 O O1 & D Insulated probe cables Sealings Roof Cable gland for temperature probe (for example: AGRO 1100.12.91.065) Temperature probe Relative humidity probe Cable gland for relative humidity probe (for example: AGRO 1160.20.145) Plastic adapter to protect probes from condensation water coming from the pipe. Diameter slightly smaller than tube diameter. Plastic tube for probe (2 pcs) Stainless steel tube coming through the roof. Two thread bars holding the plastic adapter. Insulated pipe ending.

User's Guide Ball Valve Installation Kit for HMT338 The ball valve installation kit (Vaisala order code: BALLVALVE-1) is preferred when connecting the probe to a pressurized process or pipeline. Use the ball valve set or a 1/2" ball valve assembly with a ball hole of 914 mm or more. If you install the probe (912 mm) in a process pipe, please note that the nominal size of the pipe must be at least 1 inch (2.54 cm). Use the manual press handle to press the probe into the pressurized (< 10 bar) process or pipeline. 0507-043 Figure95 Installing the HMT338 Probe Through a Ball Valve Assembly The following numbers refer to Figure 95: Manual press tool Handle of the ball valve Probe Process chamber or pipeline Groove on the probe indicates the upper adjustment limit Filter Ball of the ball valve Fitting screw © 1 O 01 W ND M210566EN-H

Appendix A Probe Installation Kits and Installation Examples NOTE The probe can be installed in the process through the ball valve assembly provided that the process pressure is less than 10 bars. This way, the process does not have to be shut down when installing or removing the probe. However, if the process is shut down before removing the probe, the process pressure can be max. 20 bars. NOTE When measuring temperature dependent quantities make sure that the temperature at the measurement point is equal to that of the process, otherwise the moisture reading may be incorrect. Follow the steps below to install the HMT338 probe through a ball valve assembly. After the installation, the probe should be sitting in the process chamber or pipeline as shown in Figure 95 on page 170.

1. Shut down the process if the process pressure is more than 10 bars.

If the pressure is lower there is no need to shut down the process. Close the ball valve. Seal the threads on the fitting body; refer to Figure 29 on page 47. Attach the fitting body to the ball valve and tighten it. Slide the clasp nut of the probe toward the filter, as far as it will go. Insert the probe to the fitting body, and manually tighten the clasp nut to the fitting body.

7. Open the ball valve.

8. Push the probe through the ball valve assembly into the process. If

the pressure is high, use the pressing handle that is provided with the probe. If you push the probe hard without using the handle, you may damage the cable. nu & ww D Note that the probe must be pushed so deep that the filter is completely inside the process flow.

9. Mark the fitting screw and the clasp nut.

10. Tighten the clasp nut with a fork wrench a further 50 … 602

(ca. 1/6 tum). If you have a suitable torque wrench, tighten the nut to max 45 +5 Nm (33 +4 ft-lbs). Referto Figure 30 on page 48. NOTE Take care not to tighten the clasp nut more than 60° to avoid difficulties when opening it. VAISALA If you wish to remove the probe from the process, note that you have to pull the probe out far enough. Y ou cannot close the valve if the groove on the probe body is not visible.

User's Guide _ Meteorological Installation Kit (for HMT337) The Vaisala meteorological Installation Kit HMT330MIK (V aisala order code: HMT330MIK) enables the HMT337 to be installed outdoors to obtain reliable measurements for meteorological purposes. For more information, see HMT330MIK brochure and order form. Radiation shicld options: DTR502 DTR502 | 22087 | gostan) 211183) 29911.8) Alternative locations for an additional transmitter mounting plate Transmitter mounting plate. J EE \ 3

f [l \ / ne: 645 25.4) | / | 800 (1.5) | 800 (31.5) / When Static pressure head (SPH10/20) is in use, the transmitter Pole mounting plate Support bar & shield for / has to be installed to the pole mast, An airtight connection for support bars / between the transmitter and the Static pressure head is made mounting plate included in / with a pressure hose. To prevent the condensed water from blocking the option). / the hose as it freezes, make sure that the hose wontt hange loose. Support bar & radiation shield for additional T probe or for non-heated RH probe or Ta probe. 0804-063 Figure 96 Meteorological Installation Kit for Outdoor Installation D M210566EN-H

Appendix B Calculation Formulas APPENDIX B CALCULATION FORMULAS This A ppendix contains the formulas used for the calculated output quantities. The HMT330 series transmitters measure relative humidity and temperature. From these values dewpoint, mixing ratio, absolute humidity and enthalpy in normal pressure are calculated using the following equations: Dewpoint:

P,, is the water vapor pressure. The parameters A, m, and T, depend on temperature according to the following table: t A m Tn < °C * 6.1134 9.7911 273.47 0... 50 °C 6.1078 7.5000 237.3

100 … 150 °C 5.8493 72756 225.0

1) Used for frostpoint calculation ifthe dewpoint is negative

Mixing ratio: x = 621.99: —= (2) p-P, Absolute humidity: a=216.68—7 (3) VAISALA 173

User's Guide Enthalpy: h=(T -273.15)-(1.01+0.00189: x) +2.5-x (4) The water vapor saturation pressure P,,, is calculated by using two equations (5 and 6): 3 : O =T =) CT i=0 where: T = temperatureinK Ci = coefficients Co = 0.4931358 C1 = -0.46094296 * 10-2 C) = 0.13746454 * 10"4 C3 = -0.12743214* 10-7 3 : InP,,=) b© +b,n® i=-1 where: bj = coefficients b.1 = -0.58002206 * 104 bo = 0.13914993 * 101 bj = -0.48640239 * 10-1 b) = 0.41764768 * 10-4 b3 = -0.14452093 * 10-7 b4 = 6.5459673 The water vapor pressure is calculated using:

Appendix VAISALA B Calculation Formulas Parts per million by volume is calculated using:

PPMy 2106. "w (8) (P-Py) Symbols: Ta = dewpoint temperature (°C) P, = water vapor pressure (hPa) Ps = Water vapor saturation pressure (Pa) RH = relative humidity (%) X = mixingratio (g/kg) p = atmospheric pressure (hPa) A = absolute humidity (g/m3) T = temperature (K) h = enthalpy (kJ/kg)